Complete and Balance the following equation. Good at chemistry or just science

its predicting the products -_-

Fe2(SO4)3 +Ba(OH)2 ----->

ohh and this question if you know it.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 23.1 g of sodium are added to water.

2Na +2H2O ----> 2NaOH +H2

Thanks so much

Fe2(SO4)3 + 3 Ba(OH)2 → 3 BaSO4 + 2 Fe(OH)3

2 Na + 2 H2O → 2 NaOH + H2
(23.1 g Na) / (22.9898 g Na/mol) × (1/2) × (6.023 × 10^23 molecules/mol) =
3.03 × 10^23 molecules H2