how is litmus paper formed - science - acids bases and salts
how is litmus paper formed
hi,
litmus paper is made by dipping filter paper in a dye this dye
is responsible for the change in colour when acid or base is
allowed to react with it
we’re being asked which of the given compounds is a lewis acid and lewis base. let’s first define a lewis acid and a lewis base.based on the lewis definition:lewis acid is an electron pair acceptor.some characteristics of a lewis acid:• when hydrogen is connected to an electronegative element such as p, o, n, s or halogens▪ hydrogen gains a partially positive charge → makes hydrogen act as a lewis acid• positively charged metal ions[readmore]▪ can accept negative electron pairs → can act as lewis acids• central element that has less than 8 valence electrons around it▪ more likely to accept an electron pair to follow the octet rule▪ can accept electron pair → can act as lewis acidlewis base is an electron pair donor.some characteristics of a lewis base:• compounds that have lone pair(s) on a central element can act as lewis bases. • compounds that possess a negative charge can act as lewis bases. let’s draw the lewis structure of each given compound and check which of them can act as a lewis acid and lewis base.step 1: determine the central atom in this molecule.step 2: calculate the total number of valence electrons present.   step 3: draw the lewis structure for the molecule.a) cs2step 1: determine the central atom in this molecule.c is less electronegative than s → c will be the central atomstep 2: calculate the total number of valence electrons present.                group             valence electronsc         4a                   1 x 4 e‑ = 4 e-s         6a                   2 x 6 e‑ = 12 e-              total: 16 valence e- step 3: draw the lewis structure for the molecule• c has a total of 8 e- electrons around it and has a lone pair→ complete octet▪ can act as a lewis acidb) sh−step 1: determine the central atom in this molecule.only two atom → no central atomstep 2: calculate the total number of valence electrons present.                group             valence electronss         6a                   1 x 6 e‑ = 6 e-h        1a                   1 x 1 e‑ = 1 e-from -1 charge:                     +1 e-              total: 8 valence e- step 3: draw the lewis structure for the molecule▪ has a negative charge▪ can act as a lewis baseanswer: sh- is the lewis base and its lewis structure is cs2 is the lewis acid and its lewis structure is **it establishes the authors' in-depth understanding and knowledge of their field subject**. it gives the background of the research. portrays the scientific manuscript plan of examining the research result. illuminates on how the knowledge has changed within the field. nucletic acid `overset("nucelase")rarr` nucleotides `overset"nuceotidase")rarr`nucleosides `overset("nucleosidase")rarr` sugars+bases 
soucrose `overset("sucrase")rarr` glucose + fructose 
fats `overset("lipase")rarr` diglycerides `overset("lipase")rarr` monoglycerides 
proteins, peptones, proteoses `underset("carboxypeptidase")overset("trypsin//chymotrypsin")rarr` dipeptides
answer: c
solution: bile salts of bile bring about emulsification of fat by which fat droplets are broken down into may small droplets this increaes lipase action on fat, by increasing the available surface area. The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/chemistry-answer-84648.pdf magnesium atom loses 2 electrons to attain a stable electronic configuration and becomes a cation. example: a non-metallic atom like chlorine gains 1 electron to attain a stable electronic configuration and becomes an anion. example: cations and anions are oppositely charged particles which attract one another to form an electrovalent bond leading to the formation of an electrovalent compound here magnesium donates one electron each with two chlorine atoms resulting in the formation of magnesium chloride. The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/chemistry-answer-49833.pdf The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/chemistry-answer-56578.pdf The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/chemistry-answer-49762.pdf The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/chemistry-answer-57886.pdf The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/chemistry-answer-42344.pdf