Question

Q7)Write down the chemical formula (Step Wise): a) Sodium oxide b) Aluminium sulphate c) Calcium carbonate d) Magnesium hydroxide e) Potassium sulphate f) Sodium chloride​

Answer 1

Answer:

• Sodium oxide

Na valency +1 and oxygen valency-2

.°. formula Na 2 O

• Aluminium Sulphate

Aluminium valency +3 sulphate -2

formula Al 2 (SO 4) 3

As it is same for all so I am writing only of these as it will become so long. Thank you

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