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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.

Respuesta :

Answer:

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

reaction.

Explanation:

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

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