Which of the TAKES PLACE WHEN A SUBSTANCE UNDERGOES A CHEMICAL CHANGE?

When a substance undergoes a chemical change, its molecular structure is altered, resulting in the formation of new substances with different properties. This process often involves breaking and forming chemical bonds, and it can be triggered by factors such as heat, light, or a reaction with another chemical. Common indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.