Write balanced chemical equations for the following reactions: a) hydrogen gas + nitrogen gas gives ammonia.

b) sodium peroxide + water gives sodium hydroxide + oxygen gas.

If you can explain how to do it it'll be greatly appreciated.

Solution given:

a) hydrogen gas + nitrogen gas gives ammonia.

Balanced chemical equation:

when pure and dry Nitrogen and Hydrogen gas is passed in the ratio 2:3 at 450°C temperature 200-900 ATM pressure in tye presence of iron as catalyst and molybdenum as promotor which forms Ammonia.

b) sodium peroxide + water gives sodium hydroxide + oxygen gas.

Balanced chemical equation:

When sodium peroxide is combined with hot water double displacement reaction takes place and forms sodium hydroxide and oxygen gas along with heat.