Question

2. Describe four processes which cause a change in a substance or an object
using examples.​

Answer 1

Answer:

Change in temperature or energy, such as the production (exothermic) or loss (endothermic) of heat. Change of composition - paper turning to ash when burned. Light and/or heat given off. Formation of gases, often appearing as bubbles in liquids.

Explanation:

Examples of Chemical Change in Everyday Life

Burning of paper and log of wood.

Digestion of food.

Boiling an egg.

Chemical battery usage.

Electroplating a metal.

Baking a cake.

Milk going sour.

Various metabolic reactions that take place in the cells.