Question

What does conserving mass mean in a chemical equation?

A. There is an unequal number of each type of atom on both sides of the equation.
B. There are more of each type of atom on the reactant side than on the product side.
C. There is equal number of each type of atom on the reactant side and product side.
D. There are more of each type of atom on the product side than on the reactant side.

Answer 1

The answer is C. There is equal number of each type of atom on the reactant side and product side.

I just did test!

Hope it helps :)

Answer 2

I would say that what conserving mass in a chemical equation means is that C. There is equal number of each type of atom on the reactant side and product side.
The equation is equal and no material is lost or gained.