Question

write down the formula of. i) sodium oxide. ii) aluminium chloride. iii) sodium sulphide. iv) magnesium hydroxide.​

Answer 1

Answer:

Aluminium Ion has a valency of 3+ whereas chloride Ion has a valency of 1-. Hence, the formula of aluminium chloride is AlCl3. Hence, the formula of sodium sulphide is Na2S. Hence, the formula of magnesium hydroxide is Mg(OH)2.

Explanation:

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Answer 2

Answer:

1) Sodium oxide - Na2O

2) Aluminum chloride - Alcl3

3) Sodium sulphide - Na2S

4) Magnesium hydroxide - Mg(OH)2

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