sentences: an base gear the shade of jumping pencil from yellow to yellow & an base is northern ->  an acid is corrosive and can change the color of litmus paper from blue to red  orange rabbit 2 the shade of messages pencil from yellow to yellow & orange sound is nutrients ->  lemon juice is corrosive and can change the color of litmus paper from blue to red  an acid is corrosive and can change the color of litmus paper from blue to red & lemon juice is corrosive and can change the color of litmus paper from blue to red ->  lemon juice is a kind of acid  lemon juice is a kind of acid & an base is often sweet in touch -> lemon juice is sour in taste