Question

2. **Which of the following statements describes a difference between a chemical change and a

physical change?
a. A physical change occurs only in elements; a chemical change occurs only in compounds.
b. A chemical change occurs only in elements; a physical change occurs only in compounds.
c.
The result of a physical change is a different composition; in a chemical change, the composition
remains the same.
d. The result of a chemical change is a different composition; in a physical change, the composition
remains the same.

Answer 1

d. The result of a chemical change is a different composition; in a physical change, the composition remains the same.