Name: (c) two gases which chemically combine to form a liquid.

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Solution

Hydrogen and oxygen are two gases which chemically combine to form a liquid i.e.,water.

Reaction involved:
$2 H_{2} (g) + O_{2} (g) \to 2 H_{2} O (I)$

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(d) a chloride which is soluble in excess of ammonium hydroxide.
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(f) the experiment which demonstrates that hydrogen chloride is soluble in water.
(g) the gas produced when chlorine water is exposed to sunlight.

(a) Name two gases which combine chemically to form a solid.
(b) Name a chloride which is soluble in excess of ammonium hydroxide.
(c) How will you show that hydrochloric acid contains both hydrogen and chlorine (other than by electrolysis)?
(d) Complete and balance the following equations:
KMnO₄ + HCl $\overset{}{\to}$ _______ + _______ + ________ + 8H ₂O