Question

B
Long Answer Questions:
1. How is the mixing of iron and sulphur a physical change? Why does it become a chemical change
heating? Explain giving reason.
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Answer 1

Answer:

Answer: When substances are mixed together, it can result either in a physical change or a chemical change. ... But when the mixture is heated, it glows after some time and a black substance is formed which is different from iron and sulphur. So, heating a mixture of iron and sulphur results in a chemical change.

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