Question

Demonstrate an activity to show chemical change

Answer 1

Answer:

Physical changes are modifications which alter an object or substance in a non-chemical manner. They change

Explanation:

Chemical change occurs inside of an object and affects its chemical properties such as toxicity, reactivity or flammability. When chemical changes occur, we’re usually able to see some sign of a reaction such as the light and sound from exploding fireworks, or the color and stench of molding bread. Unlike physical changes, chemical change cannot be undone. For example, burning wood is a chemical reaction. The process of burning releases CO2 and consumes O2. Heat and light are released. And the resulting substance, ash, cannot be turned into wood again.