Why do we crush solids before putting them into a solvent

What neutral atom is isoelectronic to mn+4

What three natural resources are found in the great lakes region

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.