Question

28
(i) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution was
produce sodium chloride and water
What is a balanced chemical equation? Why should chemical equations be balanced?
Translate the following statements into chemical equations and then balance them:
(a) Hudrogen gas combines with nitrogen to form ammonia.
(b) Hudrogen 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. State the two types in which this reaction can be classified.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
tion or
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Answer 1

$\huge\mathbb\red{ANSWER!!!!}$

(a)

• NaOH + HCl ----> NaCl + H2O

It is Already Balanced.

(b)

• 3H2 + N2 ---> 2NH3

(c)

• 2H2S + 3O2 ----> 2H2O + 2SO2

(d)

• 2K + 2H2O ---> 2KOH + H2

(e)

• 3BaCl2 + Al2(SO4)3 ----> 3BaSO4 + 2AlCl3