Question

C. State true or false:
1. When a chemical change occurs, heat is released or absorbed.
2. Digestion of food is a chemical change.
3. Baking soda produces effervescence with vinegar.
4. Magnesium burns with a pale blue flame.
5. Steel does not rust easily.​

Answer 1

Answer:

1. false
2. false
3. true
4. true
5. true

Answer 2

1. True.
2. True.
3. False.
4. Flase.
5. True.