Science, asked by yamu378, 11 months ago

(a) Why is petroleum refined by fractional distillaLIVI!
(6) How are physical changes different from chemical changes? Give one example of each.
(c) What is meant by emulsion? Give one example.
in onnlied hut 19 work is done. Explain why.

Answers

Answered by vijay7195

3

Explanation:

(b) physical changes no one substance is formed ex- boiling

(b) chemical changes new substances is formed ex- cooking

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