Question

5. Why do you think that the same volume of different materials have different masses? E.g. 1cm³ of gold weighs 19.3g but 1cm³ of aluminum weighs 2.7g.
(clue - think of the definition of volume and mass !!)

Answer 1

Tautomers are structural isomers of chemical compounds that readily interconvert. This reaction commonly results in the relocation of a proton. Tautomerism is for example relevant to the behavior of amino acids and nucleic acids, two of the fundamental building blocks of life.