When presented with balanced chemical equation, the same phase can be cancelled out only when they appear to be in the opposite side of the equation. This means that in one equation, a certain chemical is a product. However, on the next equation, that same substance can be the reactant.
Answer:
physical change
Explanation:
it it was just heated up and change into a different form
Answer: melting, freezing, sublimation, deposition, condensation, and vaporization