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Write the formulas and the names of the compounds formed between;
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1] ferrous and sulphide ions
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2]aluminium and sulphate ions
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3]potasssium amd chlorate ions
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4] barium and chloride ions
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Solution

The chemical formulae of the compounds are as follows :
1) Ferrous and sulphide ions
FeS
2) Aluminium and sulphate ions
Al₂(SO₄)₃
3) potassium and chlorate ions
KClO₃
4) Barium and chloride ions
BaCl₂

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