Question

II. Give reasons why -
Heating a mixture of iron & sulphur is considered a chemical change.
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Answer 1

When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore, heating of mixture of iron and sulphur powder is a chemical change

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Answer 2

Answer:

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