The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is
8
16
17
25

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Draw two cyclic constitutional isomers of cis-1

Fossil fuels are organic compounds that are made from