Question

Which would show an example of how physical changes are reversible?

Answer 1

Answer:

Melting tin and then cooling it into a mold

Explanation:

When you melt something, and when it cools it returns to its physical state, therefore the physical changes are reversible. For example, take chocolate. When chocolate melts its liquid, then when it's in a colder situation it becomes solid again and so on, the changes are reversible.

Answer 2

Answer:

C

Explanation:

the physical change was the gold bar being cut and if it is put back together the physical change is reversed