in a fireworks show, the fireworks give off heat and light. is this a chemical or physical change?

Answer 1

The fireworks show involves both chemical and physical changes. When the fireworks explode, the chemical reactions occur, resulting in the release of heat and light. This is a chemical change because the substances in the fireworks undergo transformations at the molecular level. Additionally, the emission of heat and light is a physical change because these are properties that can be observed without any changes in the chemical composition of the substances involved.