Question

How does the law of conservation of mass apply to this reaction: Mg + 2HCl + H2 + MgCl2?

A) the law of conservation of mass has already been applied.
B) only the hydrogen needs to be balanced.
C) hydrogen and chlorine needs to be balanced.
D) the equation needs to be balanced.

Answer 1

a

Step-by-step explanation:

Answer 2

A

Step-by-step explanation:

The law of conservation of mass has already been applied