What will happen when a reactant is added to a system at equilibrium?

As you move from right to left on the periodic table the atomic radius fill in the blank

In which situation can a mixture always be called a solution

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.