1. Write down the formulae of
(i) sodium oxide
(ii) aluminium chloride
(iii) sodium suphide
(iv) magnesium hydroxide
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Explanation:
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Explanation:
Hence, the formula of sodium oxide is Na2O. Aluminium chloride is an ionic compound made up of aluminium ions and chloride ions. Aluminium Ion has a valency of 3+ whereas chloride Ion has a valency of1-. ... Hence, the formula of magnesium hydroxide is Mg(OH)2.
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