Question

What must be the same on each side of a chemical equation, because of the
law of conservation of matter?
A. The number of molecules of each compound
B. The total number of molecules
C. The number of atoms of each element
D. The total number of elements
SUBMIT

Answer 1

The law of conservation of matter states that matter is neither created nor destroyed. It remains the same number before and after the chemical reactions occur.

The number of atoms of each element is the same before and after the chemical reactions.

Thus, the correct option is (C).