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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.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2