Hey there!
Chemical changes are changes in object's chemical compounds and chemical compositions, and often can't be reversed.
Here's an example:
If you have a piece of paper and you happen to burn it, that can't be reversed.
In other words, it can't be "un-burned". Nothing can restore it to its previous state.
Hopefully this helped!
2. B) electrical chemical thermal mechanical
3. B) light, sound, and heat
4. A) light energy from the sun
The physical properties of matter are going to be appearance,texture, density. hope that helped
Answer:
A geologist would observe how the material that the sculpture is made out of reacts to the acid.
