Question

2. Why are the properties of different compounds so different from each other?
3. Why are most elements not found in the free state in nature?
4. How can you form iron sulphide from a mixture of iron and sulphur?​

Answer 1

Answer:

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Answer 2

Answer:

2. Compounds have different properties from the elements that make them. The atoms of different elements are held together in compounds by chemical bonds. Chemical bonds can hold atoms together in large networks or in small groups. Bonds help determine the properties of a compound.

3. The most elements are not found in free state because elements have a ability to combine with substances. It quickly react .

4. (i) First form a mixture. Stir some iron filings and sulfur together to form a powder. ...

(ii) If you heat the mixture over a bunsen burner, hot plate, or stove, the mixture will start to glow. The elements will react and will form iron sulfide, which is a compound