Question

Pls answer and no spam

Answer 1

Answer:

Na + H2O=NaOH

blue litmus no change

red litmus to blue

Ca+H2O=CA(OH)2

1. H2 gas is envolved
2. ca start floating
3. heat is produced

Answer 2

a) When sodium metal comes in contact with the water, the highly exothermic chemical reaction takes place, a lot of hat is generated because sodium is highly reactive.

b) 2Na + 2H2O > 2NaOH +H2

c) red litmus to blue

d):H2 is evolved

Ca starts floating

Heat is produced

Hope this helps u