Which are the physical properties of water

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.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

What are the coefficients to balance the following equation? ba+br=babr2