What is the molarity of a solution that is made from 44.9 g of MgCl2 in enough water to make 420 mL of solution? Please round your answer to two digits after the decimal point.

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.