Question

give answer fastttt class 10​

Answer 1

Answer:

13.a)thermal decomposition

b)thermal decomposition

c)electrolysis( decomposition with light)

d)----------(dk)

e)photolysis( decomposition with sunlight)

14.yes but u can balance by putting numbers only before th element and not after

15.to remove all impurities

Explanation:

Answer 2

Answer:

Explanation:

13.

1. decomposition

2. combination reaction

3. electrolytic decomposition

4. netralization reaction

5. decomposition reaction

14. by changing the formula of any of the reactant or product the whole reaction will be changed. So, we can not change the formula of any of the species taking part in the reaction while balancing its chemical equation.

15. Magnesium ribbon is cleaned with sandpaper before burning in air because it reacts with oxygen and forms a white layer of magnesium oxide and this layer is unable to burn