Question

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

Answer 1

Answer:

i) Na2O.

ii) AlCl3

iii) Na2S

iv) (OH)2

Answer 2

Answer:

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 aluminium chloride is AlCl3.

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 aluminium chloride is AlCl3. Hence, the formula of sodium sulphide is Na2S.

Magnesium hydroxide is the inorganic compound with the chemical formula Mg(OH)2.Magnesium hydroxide is the inorganic compound with the chemical formula Mg(OH)2. It occurs in nature as the mineral brucite.

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