Translate the following statements into chemical equations and then balance them.
(a)Hydrogen gas combines with nitrogen to form ammonia.
(b)Hydrogen sulphide gas burns in air to give water and sulpur dioxide.
(c)Barium chloride reacts with aluminium sulphate to give aluminium chlorideand a precipitate of barium sulphate.
(d)Potassium metal reacts with water to give potassium hydroxide and hydrogengas.
Answers
Answer:
a N2 + H2 = 2NH3
b HSO3 + O2 = SO2 + H2O
c BaCl + Also4 = AlCl + Baso4
d 2K + H2O = K2O + H2
Answer:
((a) 3H2 + N2 → 2NH3
The following chemical reaction takes place when hydrogen gas interacts with nitrogen to form ammonia. Hydrogen and nitrogen react together to form ammonia in this scenario.
H2 + N2 → NH3
Balancing the above equation, we get
3H2 + N2 → 2NH3
(b) 2H2S + 3O2 → 2H2O + 2SO2
Hydrogen sulphide gas burns in air to give water and sulphur dioxide can be expressed in terms of equation as
H2S + O2 → H2O + SO2 (unbalanced equation)
The balanced equation is
2H2S + 3O2 → 2H2O + 2SO2
(c) Al2(SO4)3 + 3BaCl2→ 2AlCl3 + 3BaSO4
Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. The reaction is an example of a double displacement reaction since ammonium and barium are getting displaced from their respective salts. The chemical equation can be represented as
Aluminium sulfate + Barium chloride → Aluminum chloride + Barium sulfate
Al2(SO4)3 + 3BaCl2→ 2AlCl3 + 3BaSO4
(d) 2K + 2H2O → 2KOH + H2
Potassium hydroxide and hydrogen gas are formed when potassium metal reacts with water.
K + H2O → KOH + H2 (unbalanced equation)
The balanced equation is
2K + 2H2O → 2KOH + H2