Question

Which of the following can be considered evidence of a chemical change? (Click the 4 that apply)
A) Production of Bubbles***
B) Color Change***
C) Heat is Released
D) Freezing
E) Melting
F) Evaporation
G) Dissolving***
H) Production of a new Substance***

Am I correct?

Answer 1

3 out of 4

dissolving is a physical change
... dissolve salt in water ... evaporate water ... still have salt (unchanged)

HINT ... chemical changes usually involve energy

Answer 2

I feel like the rest of the answers would be physical changes, but would it be " heat is released " ?

Answer 3

yes, heat is released