Question

3. In addition of formation of new substance
what all changes can be observed
during a
chemical change?Give one example of each type of change.​

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.

Answer 2

Answer:

heat is given during the chemical change