Iron salt and water
(d)
1. What is a balanced chemical equation? Why shou
balanced?
5. Translate the following statements into chemical equati
(a) Hydrogen gas combines with nitrogen to form am
(b) Hydrogen sulphide gas burns in air to give water
(c) Barium chloride reacts with aluminium sulphate
and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassiu
gas.
5. Balance the following chemical equations.
(a) HNO, + Ca(OH), Ca(NO3), + H,O
(b) NaOH + H,SO, Na, SO, +H2O
Answers
(a) Hydrogen gas combines with nitrogen to form ammonia.
(a) Hydrogen gas combines with nitrogen to form ammonia.(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(a) Hydrogen gas combines with nitrogen to form ammonia.(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
(a) Hydrogen gas combines with nitrogen to form ammonia.(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.