7. When a log is thrown on a fire it seems to lose weight; what happens to its physical mass?
a. It disappears
b. It is released into the air
C.
It becomes energy
d. The log does not change weight or size

Explanation:The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

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7. When a log is thrown on a fire it seems to lose weight; what happens to its physical mass? a. It disappears b. It is released into the air C. It becomes energy d. The log does not change weight or size

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7. When a log is thrown on a fire it seems to lose weight; what happens to its physical mass?
a. It disappears
b. It is released into the air
C.
It becomes energy
d. The log does not change weight or size