Which of the following indicates that are physical chang has occurred A a material fizzes when it interacts with another material

B a substance changes collar

C a substance changes state from solid liquid

D a metal is no longer magnetic after it is combined with another substance

C. a substance changes state from solid to liquid

Explanation:

A physical change is one that occurs when the substance of subject changes its form as a result of a reaction. The most noticeable indicator of this is a change in the state of matter such as a change from liquid to solid like the above.

The other options show a chemical change as the form was not changed but its chemical properties such as color was changed or it lost some atoms which became air.

the answer is d.index