Question

question write down the formula of ii) aluminum sulfate
sodium sulphate
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Answer 1

Answer:

Na2SO4

Sodium sulfate/Formula

Al2(SO4)3

Aluminium sulfate/Formula

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Answer 2

Answer:

Al2(SO)3

Na2(SO)4

Explanation:

Because Aluminium has +3 charge and sulfur has +2 charge.

And sodium has +1 charge.

As Na can donate only one electron but sulfur needs 2 so 2 Na are taken.

As per Al can donate 3 electrons and S can receive 2 so 2 Al are needed.