An unknown compound consists of 9 moles of hydrogen, 3 moles of carbon, and 3 moles of bromine. The empirical formula of the compound should be: -CH3Br3

-C3H9Br3

-CH3Br

-CH2Br

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.