Question

When a chemical reaction occurs in a sealed container, what is the total mass after the reaction compared to the total mass before the reaction? A.
the same

B.
less

C.
more

D.
variable

Answer 1

A, When a chemical reaction occurs in a sealed container, the mass of the materials in the container stays the same. A chemical reaction is taking place in a sealed container.

Answer 2

The answer is A. the same.

Since the container is sealed, their will be no loss of material from the container which means that the mass won’t vary.