A phase change is when matter changes into another form but keeps its properties
Did you ever figure out the answer to this? I have the same question and don't know the answer.
The answer is <span>C. Change in odor.
There are several signs of chemical reaction:
1. Dissolved precipitate.
2. Formation of gas (bubbles).
3. Change of color.
4. Change of temperature (warming or cooling).
5. Production of energy.
Among these signs, there is no change in odor, which is, thus, the right choice.</span>
It’s because it has to be pg
