What is crucial in the formation of metamorphic rock?

These conditions are most often found either deep in Earth's crust or at plate boundaries where tectonic plates collide. In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt. If there is too much heat or pressure, the rock will melt and become magma.

Explanation:

Explanation:

There are some options that are correct.

1) Amount of limiting reactant used in a reaction.

It can be calculated from the quantity of the reactants.

2) Amount of excess reactant from a reaction

It can be also calculated from the quantity of the reactants.

3) Theoretical yield of products

Amount of limiting reactant used in a reaction

Amount of excess reactant from a reaction

Theoretical yield of products