When a gas is cooled, the particles lose energy and hence slow down gradually. As they slow down they easily attract their neighbouring particles and cluster together to form a liquid.
Kavungya answered the question on March 25, 2019 at 08:44
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(i) Oily and greasy –
(ii) Blood stains –
(iii) Perspiration stains –
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(d)...(Solved)
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(b) Kerosine from Crude oil.
(c) Paraffin from water.
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Date posted: March 25, 2019. Answers (1)
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Date posted: March 25, 2019. Answers (1)