give the formula using Criss cross method :
I) Aluminum sulphate
ii) ferrous chloride
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Answer:
Aluminium valency 3
sulphate valency 2
Aluminium Sulphate
Al2(SO4)3
Explanation:
Aluminium valency 3
sulphate valency 2
Aluminium Sulphate
Al2(SO4)3
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