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NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_011185 | image | question_images/optics_refraction_9198.png | optics_refraction_9198.png | 0.324613 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_002554 | image | abc_question_images/earth_eclipses_11656.png | earth_eclipses_11656.png | 0.321113 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DD_0269 | image | teaching_images/optics_reflection_9183.png | This diagram depicts how light rays can reflect off various surfaces. Incident rays will reflect back at a specific angle if the surface is smooth. A rough or broken surface will have reflected rays with a wide variety of reflected angles. The left part of the diagram shows why your reflection in a mirror is smooth and natural looking. | 0.319582 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_012201 | image | question_images/optics_reflection_9182.png | optics_reflection_9182.png | 0.319284 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_012206 | image | question_images/optics_reflection_9185.png | optics_reflection_9185.png | 0.315991 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_012198 | image | question_images/optics_reflection_9181.png | optics_reflection_9181.png | 0.315991 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DD_0266 | image | teaching_images/optics_ray_diagrams_9167.png | This diagram shows Ray (optics). In optics, a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wave fronts of the actual light, and that points in the direction of energy flow. Rays are used to model the propagation of light through an optical system by dividing the real light field up into discrete rays that can be computationally propagated through the system by the techniques of ray tracing. This allows even very complex optical systems to be analyzed mathematically or simulated by computer. All three rays should meet at the same point. The Principal Ray or Chief Ray (sometimes known as the b ray) in an optical system is the meridional ray that starts at the edge of the object and passes through the center of the aperture stop. This ray crosses the optical axis at the locations of the pupils. As such, chief rays are equivalent to the rays in a pinhole camera. The Central Ray is perpendicular to Infrared Radiation. The third one, called the Focal Ray, is a mirror image of the parallel ray. The focal ray is drawn from the tip of the object through (or towards) the focal point, reflecting off the mirror parallel to the principal axis. | 0.314974 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_011169 | image | question_images/optics_refraction_9191.png | optics_refraction_9191.png | 0.314837 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_002549 | image | abc_question_images/earth_eclipses_11647.png | earth_eclipses_11647.png | 0.313821 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | DQ_012158 | image | abc_question_images/optics_reflection_19180.png | optics_reflection_19180.png | 0.313539 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.615927 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_3813 | text | null | The shortest-wavelength, highest-frequency electromagnetic waves are X rays and gamma rays. These rays have so much energy that they can pass through many materials. This makes them potentially very harmful, but it also makes them useful for certain purposes. | 0.610377 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_0726 | text | null | Nuclear energy is produced by splitting the nucleus of an atom. This releases a huge amount of energy. | 0.599371 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_0217 | text | null | Radiation is the transfer of energy by waves. Energy can travel as waves through air or empty space. The Suns energy travels through space by radiation. After sunlight heats the planets surface, some heat radiates back into the atmosphere. | 0.592111 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_4464 | text | null | Gamma rays are the most dangerous type of radiation. They can travel farther and penetrate materials more deeply than can the charged particles emitted during alpha and beta decay. Gamma rays can be stopped only by several centimeters of lead or several meters of concrete. Its no surprise that they can penetrate and damage cells deep inside the body. | 0.589333 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_4295 | text | null | A low level of radiation occurs naturally in the environment. This is called background radiation. One source of background radiation is rocks, which may contain small amounts of radioactive elements such as uranium. Another source is cosmic rays. These are charged particles that arrive on Earth from outer space. Background radiation is generally considered to be safe for living things. | 0.588467 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_1711 | text | null | Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy through the empty space between the Sun and the Earth as radiation. | 0.587336 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_4997 | text | null | A photon isnt a fixed amount of energy. Instead, the amount of energy in a photon depends on the frequency of the electromagnetic wave. The frequency of a wave is the number of waves that pass a fixed point in a given amount of time, such as the number of waves per second. In waves with higher frequencies, photons have more energy. | 0.586 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_0698 | text | null | Energy changes form when something happens. But the total amount of energy always stays the same. The Law of Conservation of Energy says that energy cannot be created or destroyed. Scientists observed that energy could change from one form to another. They also observed that the overall amount of energy did not change. | 0.584672 |
NDQ_018225 | the process described in question 5 to will occur if light rays enter the new medium | null | a. at a 90-degree angle., b. at a 45-degree angle., c. perpendicularly., d. two of the above | b | T_3675 | text | null | Energy that the sun and other stars release into space is called electromagnetic energy. This form of energy travels through space as electrical and magnetic waves. Electromagnetic energy is commonly called light. It includes visible light, as well as radio waves, microwaves, and X rays (Figure 17.14). | 0.584115 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_002554 | image | abc_question_images/earth_eclipses_11656.png | earth_eclipses_11656.png | 0.32498 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_002571 | image | question_images/earth_eclipses_1656.png | earth_eclipses_1656.png | 0.307537 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_002544 | image | abc_question_images/earth_eclipses_10696.png | earth_eclipses_10696.png | 0.302796 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_012201 | image | question_images/optics_reflection_9182.png | optics_reflection_9182.png | 0.298615 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DD_0220 | image | teaching_images/optics_refraction_9200.png | This diagram explains the law of reflection and shows how light gets reflected from a surface. The law of reflection states that the angle of incidence (i) is always equal to the angle of reflection (r). The angles of both reflected and incident ray are measured relative to the imaginary dotted-line, called normal, that is perpendicular (at right angles) to the mirror (reflective surface). On the other hand, Refraction is caused by the change in speed experienced by a wave when it changes medium. The refracted ray is a ray (drawn perpendicular to the wave fronts) that shows the direction that light travels after it has crossed over the boundary. The angle that the incident ray makes with the normal line is referred to as the angle of incidence. Similarly, the angle that the refracted ray makes with the normal line is referred to as the angle of refraction. Thus, this is what the following diagram is all about. | 0.295113 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_002531 | image | abc_question_images/earth_eclipses_10677.png | earth_eclipses_10677.png | 0.292296 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_012163 | image | abc_question_images/optics_reflection_19182.png | optics_reflection_19182.png | 0.292255 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_012203 | image | question_images/optics_reflection_9184.png | optics_reflection_9184.png | 0.291348 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_002549 | image | abc_question_images/earth_eclipses_11647.png | earth_eclipses_11647.png | 0.291337 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | DQ_011188 | image | question_images/optics_refraction_9199.png | optics_refraction_9199.png | 0.290553 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.789305 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_4999 | text | null | Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation: Speed = Distance Time | 0.784083 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_4885 | text | null | How fast or slow something moves is its speed. Speed determines how far something travels in a given amount of time. The SI unit for speed is meters per second (m/s). Speed may be constant, but often it varies from moment to moment. | 0.766037 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_3837 | text | null | Lenses make use of the refraction of light to create images. A lens is a transparent object, typically made of glass, with one or two curved surfaces. The more curved the surface of a lens is, the more it refracts light. Like mirrors, lenses may be concave or convex. | 0.764619 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.736575 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_4889 | text | null | The speed of sound is the distance that sound waves travel in a given amount of time. Youll often see the speed of sound given as 343 meters per second. But thats just the speed of sound under a certain set of conditions, specifically, through dry air at 20 C. The speed of sound may be very different through other matter or at other temperatures. | 0.732893 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_3773 | text | null | Sound has certain characteristic properties because of the way sound energy travels in waves. Properties of sound include speed, loudness, and pitch. | 0.732286 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_0216 | text | null | Energy travels through space or material. Heat energy is transferred in three ways: radiation, conduction, and convection. | 0.731715 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_4195 | text | null | Work is the use of force to move an object. It is directly related to both the force applied to the object and the distance the object moves. Work can be calculated with this equation: Work = Force x Distance. | 0.729069 |
NDQ_018226 | the greater the difference in the speed of light through two media, the greater the angle of refraction is. | null | a. true, b. false | a | T_0217 | text | null | Radiation is the transfer of energy by waves. Energy can travel as waves through air or empty space. The Suns energy travels through space by radiation. After sunlight heats the planets surface, some heat radiates back into the atmosphere. | 0.72609 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_012203 | image | question_images/optics_reflection_9184.png | optics_reflection_9184.png | 0.338591 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_002554 | image | abc_question_images/earth_eclipses_11656.png | earth_eclipses_11656.png | 0.336419 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011180 | image | question_images/optics_refraction_9196.png | optics_refraction_9196.png | 0.333256 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DD_0220 | image | teaching_images/optics_refraction_9200.png | This diagram explains the law of reflection and shows how light gets reflected from a surface. The law of reflection states that the angle of incidence (i) is always equal to the angle of reflection (r). The angles of both reflected and incident ray are measured relative to the imaginary dotted-line, called normal, that is perpendicular (at right angles) to the mirror (reflective surface). On the other hand, Refraction is caused by the change in speed experienced by a wave when it changes medium. The refracted ray is a ray (drawn perpendicular to the wave fronts) that shows the direction that light travels after it has crossed over the boundary. The angle that the incident ray makes with the normal line is referred to as the angle of incidence. Similarly, the angle that the refracted ray makes with the normal line is referred to as the angle of refraction. Thus, this is what the following diagram is all about. | 0.331361 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011188 | image | question_images/optics_refraction_9199.png | optics_refraction_9199.png | 0.328219 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011210 | image | question_images/parts_telescope_8150.png | parts_telescope_8150.png | 0.323674 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011169 | image | question_images/optics_refraction_9191.png | optics_refraction_9191.png | 0.321921 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011171 | image | question_images/optics_refraction_9192.png | optics_refraction_9192.png | 0.320257 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_011175 | image | question_images/optics_refraction_9194.png | optics_refraction_9194.png | 0.317938 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | DQ_012206 | image | question_images/optics_reflection_9185.png | optics_reflection_9185.png | 0.315952 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_3837 | text | null | Lenses make use of the refraction of light to create images. A lens is a transparent object, typically made of glass, with one or two curved surfaces. The more curved the surface of a lens is, the more it refracts light. Like mirrors, lenses may be concave or convex. | 0.730073 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.700793 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_3820 | text | null | When visible light strikes matter, it interacts with it. How light interacts with matter depends on the type of matter. | 0.65389 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_4997 | text | null | A photon isnt a fixed amount of energy. Instead, the amount of energy in a photon depends on the frequency of the electromagnetic wave. The frequency of a wave is the number of waves that pass a fixed point in a given amount of time, such as the number of waves per second. In waves with higher frequencies, photons have more energy. | 0.652677 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_0217 | text | null | Radiation is the transfer of energy by waves. Energy can travel as waves through air or empty space. The Suns energy travels through space by radiation. After sunlight heats the planets surface, some heat radiates back into the atmosphere. | 0.649307 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_4568 | text | null | One thing is true of both regular and diffuse reflection. The angle at which the reflected rays leave the surface is equal to the angle at which the incident rays strike the surface. This is known as the law of reflection. The law is illustrated in the Figure 1.3. | 0.648593 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_4999 | text | null | Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation: Speed = Distance Time | 0.63941 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_1708 | text | null | Most of the energy that reaches the Earths surface comes from the Sun (Figure 1.1). About 44% of solar radiation is in the visible light wavelengths, but the Sun also emits infrared, ultraviolet, and other wavelengths. | 0.632334 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_4893 | text | null | A given kind of matter has the same chemical makeup and the same chemical properties regardless of its state. Thats because state of matter is a physical property. As a result, when matter changes state, it doesnt become a different kind of substance. For example, water is still water whether it exists as ice, liquid water, or water vapor. | 0.632295 |
NDQ_018227 | the greatest refraction of light will occur when light passes from air to | null | a. diamond., b. water., c. glass., d. alcohol. | a | T_3592 | text | null | Regardless of what gravity is a force between masses or the result of curves in space and time the effects of gravity on motion are well known. You already know that gravity causes objects to fall down to the ground. Gravity affects the motion of objects in other ways as well. | 0.630868 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011501 | image | question_images/states_of_matter_7614.png | states_of_matter_7614.png | 0.292802 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011523 | image | question_images/states_of_matter_9252.png | states_of_matter_9252.png | 0.291039 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_4894 | image | textbook_images/states_of_matter_23100.png | FIGURE 1.2 | 0.285988 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_3519 | image | textbook_images/acids_and_bases_22216.png | FIGURE 10.6 Blue litmus paper turns red when placed in an acidic solution. | 0.285091 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011534 | image | question_images/states_of_matter_9255.png | states_of_matter_9255.png | 0.282133 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011497 | image | question_images/states_of_matter_7613.png | states_of_matter_7613.png | 0.277168 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_4745 | image | textbook_images/properties_of_acids_23035.png | FIGURE 1.2 | 0.276524 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011479 | image | abc_question_images/states_of_matter_17613.png | states_of_matter_17613.png | 0.273446 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DQ_011492 | image | abc_question_images/states_of_matter_19256.png | states_of_matter_19256.png | 0.269042 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | DD_0235 | image | teaching_images/states_of_matter_9256.png | The image below shows Gases, Liquids, and Solids. Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. Gas assumes the shape and volume of its container particles can move past one another. Liquid also assumes the shape of the part of the container which it occupies particles can move/slide past one another. while solids retains a fixed volume and shape rigid - particles locked into place | 0.268472 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_2237 | text | null | All known matter can be divided into a little more than 100 different substances called elements. | 0.793455 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_4893 | text | null | A given kind of matter has the same chemical makeup and the same chemical properties regardless of its state. Thats because state of matter is a physical property. As a result, when matter changes state, it doesnt become a different kind of substance. For example, water is still water whether it exists as ice, liquid water, or water vapor. | 0.755888 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.748879 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_1447 | text | null | Minerals are divided into groups based on chemical composition. Most minerals fit into one of eight mineral groups. | 0.747623 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_1674 | text | null | Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water. | 0.747423 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_0638 | text | null | To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of. | 0.745533 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.741812 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_3918 | text | null | Some properties of matter can be measured or observed only when matter undergoes a change to become an entirely different substance. These properties are called chemical properties. They include flammability and reactivity. | 0.738301 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_3960 | text | null | Solids that change to gases generally first pass through the liquid state. However, sometimes solids change directly to gases and skip the liquid state. The reverse can also occur. Sometimes gases change directly to solids. | 0.726914 |
NDQ_018282 | there is a limit on how much of any substance will dissolve in a given amount of another substance. | null | a. true, b. false | a | T_2746 | text | null | Like all organisms, bacteria need energy, and they can acquire this energy through a number of different ways. | 0.725069 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_3510 | image | textbook_images/introduction_to_solutions_22211.png | FIGURE 10.1 These two diagrams show how an ionic compound (salt) and a covalent compound (sugar) dissolve in a solvent (water). MEDIA Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/5004 | 0.305566 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_3930 | image | textbook_images/types_of_matter_22527.png | FIGURE 3.13 These three mixtures differ in the size of their particles. Which mixture has the largest particles? Which has the smallest particles? | 0.302642 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4904 | image | textbook_images/synthesis_reactions_23105.png | FIGURE 1.1 | 0.301985 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4048 | image | textbook_images/types_of_chemical_reactions_22611.png | FIGURE 8.6 Sodium and chlorine combine to synthesize table salt. | 0.300631 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4265 | image | textbook_images/compounds_22742.png | FIGURE 1.3 | 0.299463 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4265 | image | textbook_images/compounds_22741.png | FIGURE 1.2 | 0.299463 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_3926 | image | textbook_images/types_of_matter_22523.png | FIGURE 3.9 Table salt is much different than its com- ponents. What are some of its proper- ties? | 0.297229 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_3513 | image | textbook_images/solubility_and_concentration_22212.png | FIGURE 10.2 This graph shows the amount of different solids that can dissolve in 1 L of water at 20 degrees C. | 0.294615 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4790 | image | textbook_images/recognizing_chemical_reactions_23053.png | FIGURE 1.2 | 0.292328 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4785 | image | textbook_images/rate_of_dissolving_23050.png | FIGURE 1.1 | 0.291241 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_1674 | text | null | Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water. | 0.656052 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4893 | text | null | A given kind of matter has the same chemical makeup and the same chemical properties regardless of its state. Thats because state of matter is a physical property. As a result, when matter changes state, it doesnt become a different kind of substance. For example, water is still water whether it exists as ice, liquid water, or water vapor. | 0.645869 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_0164 | text | null | You know that ocean water is salty. But do you know why? How salty is it? | 0.643503 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4018 | text | null | Water (H2 O) is an example of a chemical compound. Water molecules always consist of two atoms of hydrogen and one atom of oxygen. Like water, all other chemical compounds consist of a fixed ratio of elements. It doesnt matter how much or how little of a compound there is. It always has the same composition. | 0.627164 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.619655 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_0133 | text | null | Did you ever wonder where the water in your glass came from or where its been? The next time you take a drink of water, think about this. Each water molecule has probably been around for billions of years. Thats because Earths water is constantly recycled. | 0.612514 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4747 | text | null | Acids have many important uses, especially in industry. For example, sulfuric acid is used to manufacture a variety of different products, including paper, paint, and detergent. Some other uses of acids are be seen in the Figure 1.3. | 0.611534 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.608378 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_2237 | text | null | All known matter can be divided into a little more than 100 different substances called elements. | 0.601519 |
NDQ_018284 | which sugar-water solution is saturated? | null | a. 1000 g of sugar in 1 L of water at 20 °C, b. 1500 g of sugar in 1 L of water at 20 °C, c. 2000 g of sugar in 1 L of water at 20 °C, d. all of the above | c | T_0426 | text | null | Most Americans have plenty of fresh, clean water. But many people around the world do not. In fact, water scarcity is the worlds most serious resource problem. How can that be? Water is almost everywhere. More than 70 percent of Earths surface is covered by water. | 0.60068 |
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