Question

1. Write down the formulae of
(1) sodium oxide
(ii) aluminium chloride
(iii) sodium suphide
(iv) magnesium hydroxide​

Answer 1

Answer:

Aluminium Ion has a valency of 3+ whereas chloride Ion has a valency of1-. 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:

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