Question

E. Answer these questions in Yes and No.
1. Does energy change from one form to another in a chemical reaction?
2. Does a chemical equation predict the feasibility of that reaction?
3. In an exothermic reaction, the temperature of the system increases.
4. Copper reacts with dilute sulphuric acid and evolves hydrogen
5. A balanced chemical equation may or may not be molecular,
6. Zinc can displace aluminium from aqueous solution of aluminium sulphate,
7. Rancidity of oil and fat containing food is due to oxidation.
8. The milkiness of limewater on passing carbon dioxide is due to the formation of calcium hydrogencarbor
9. Colour of copper sulphate slowly disappears when a zinc rod is dipped in the solution.
10. Is dissolution of ammonum chlonde in water an exothermic process?
CHEMICAL REACTIONS AND FUTONS​

Answer 1

Answer:

1) yes

2) no

3) yes

4) no

5) yes

6) no

7) yes

8)no

9)yes

10)no