Question

From what observation can you conclude that a chemical change is occurring?​

Answer 1

Answer:

Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change

Explanation:

The following are indicators of chemical changes:

Change in Temperature.

Change in Color.

Noticeable Odor (after reaction has begun)

Formation of a Precipitate.

Formation of Bubbles.

Answer 2

Explanation:

Observations that indicate a chemical change has occurred include color change, temperature change, light given off, formation of bubbles, formation of a precipitate, etc

The following are indicators of chemical changes:

Change in Temperature.

Change in Color.

Noticeable Odor (after reaction has begun)

Formation of a Precipitate.

Formation of Bubbles.