Question

when you add water to sulfur dioxide and put a blue litmus paper in it why does it turn red? ​

Answer 1

Answer:

Answer:

when iron ( fe ) is added in copper sulphate

copper gets displaced and iron sulphate ( feso4 ) gets formed

The iron nails get a deposit of brown colour copper

These changes are chemical in nature :

FE + CUSO4 ➡️ FE SO4 + CU

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Answer 2

Answer:

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