What phrases did charles horton cooley use to describe primary group

Identify and describe the three ways that mutations affect organisms.

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Which statement best describes what happens when molecular compounds melt