Question

Which of the following properties can be used as evidence a chemical reaction has occurred? (Select all that apply)

a. Density change
b. Melting point change
c. odor change
d. Color change

Answer 1

Density, odor, and color changes. Hope this helps ฅ^•ﻌ•^ฅ

Answer 2

A,C,and D are the answers for this question