Question

You observed several chemical reactions throughout the lessons in this unit. And we discussed them in class.

A. List 5 signs (observations) that indicate a chemical reaction has occurred.

B. Give 1 specific example for 2 of the signs you listed.

Answer 1

Answer:

1. bubbling

2. steam

3. change of color

4. change of  form ( solid, liquid, gasses)

5. dizzolving

example:

1. Rock melting

2. water steaming

Explanation:

I'm trying sorry if its wrong