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Significance of a Molecular Formula

Write the che...

Question

Write the chemical formulae of the following.

(a) Hydrogen sulphide

(b) Aluminium oxide

(c) Sodium nitrate

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Write the chemical formulae of the following:

(a) Magnesium chloride

(b) Calcium oxide

(c) Copper nitrate

(d) Aluminium chloride

(e) Calcium carbonate

Q. Write a balanced chemical equation with the help of chemical symbols and formulas for the following reactions:

(i) Zinc + Silver nitrate

⟶

Zinc nitrate + Silver

(ii) Copper oxide + Hydrogen

⟶

(iii) Barium chloride + Aluminium sulphate

⟶

Barium sulphate + Aluminium chloride

Q. Write the formulae of the following compounds, showing the steps involved.

(a) sodium oxide
(b) magnesium nitrate
(c) magnesium sulphate
(d) aluminium chloride

Write down the formulae of

(i) Sodium oxide

(ii) Aluminium chloride

(iii) Sodium sulphide [3 MARKS]

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Significance of a Molecular Formula

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