Question

5.

Which statement is always true about conservation of matter?
A. If a gas forms, the mass of a system decreases.
B. If a solid forms, the mass of a system increases.
C. The mass of a system does not change during a chemical
reaction.
D. The mass of a system changes when a substance changes from
liquid to gas, but it does not change in a chemical reaction.

Answer 1

C. The mass of a system does not change during a chemical

reaction.

Step-by-step explanation:

mass doesn't just disappear, it can change form but it cant disappear