Question

Which of the following are indicators of a chemical change? Select all that apply. color change temperature change precipitate formation gas formation cutting a solid into smaller pieces

Answer 1

Indicators of a chemical change:
1.color change
2.temperature change
3. precipitate formation
4.gas formation

Answer 2

Answer: color change , temperature change, precipitate formation, gas formation

Step-by-step explanation:

A physical change is defined as the change in which shape, size of the atoms change. No new substance gets formed in these reactions.

Example: cutting a solid into smaller pieces

A chemical change is defined as the change in which change in chemical composition of atoms takes place. A new substance is formed in these reactions.

Characteristics of chemical reaction:

1. Change in color

2. Formation of precipitate

3. Energy is lost or absorbed