Question

Write down the formulae of

(i) sodium oxide

(ii) aluminium chloride

(iii) sodium sulphide

(iv) magnesium hydroxide
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Answer 1

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The following are the formulae:

(i) sodium oxide – Na2O

(ii) aluminium chloride – AlCl3

(iii) sodium sulphide – Na2S

(iv) magnesium hydroxide – Mg (OH)2

Answer 2

Answer:

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➣Sodium oxide - Na2O

➣Aluminum chloride - AlCl3

➣Sodium sulphide- NA2SO4

➣Magnesium hydroxide- Mg(OH)2