Question

write the balanced equation for the following chemical reaction:-

(a) hydrogen+chlorine- Hydrogen chloride.

(b) Barium chloride+Aluminium-Barium+Aluminium sulphate chloride.

(c) Sodium+water-sodium hydroxide+hydrogen.

(d) Hydrogen+oxygen-Water
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Answer 1

The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.

(a) H2 (g) + Cl2 (g) → 2HCl (g)

Hydrogen gas combines with chlorine gas to form hydrogen chloride gas.

(b) 3BaCl2 (s) + Al2(SO4)3 (s) → 3BaSO4(s) + 2AlCl3 (s)

When barium chloride reacts with aluminium sulphate to give barium sulfate and aluminium chloride.

(c) 2Na(s) + 2H2O (l) → 2NaOH (aq) + H2 (g)

Sodium reacts with water to give sodium hydroxide and hydrogen gas. The reaction is an example of redox reaction.

Answer 2

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