Question

evidence of a physical change is a________, light produced change in state of matter gas released. new substance

Explanation:

A physical change is a change in which no new substances are formed. A change in the state of matter (e.g., melting ice from solid to liquid) is a physical change as the chemical composition remains the same. Light produced (usually in a chemical reaction like combustion), gas released (in a chemical reaction like baking soda - vinegar reaction), and new substance (by definition of a chemical change) are evidence of chemical changes.

Answer:

change in state of matter