This method is used in Lake Magadi to get trona and common salt.
Crystals of the salts are formed when a saturated solution is left exposed to the air for some time. As the evening approaches, drastic change of temperatures have a cooling effect on the saturated solution of the salts. This results into crystal formation.
Kavungya answered the question on March 25, 2019 at 07:54
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(i) Oily and greasy –
(ii) Blood stains –
(iii) Perspiration stains –
(b) A drying agent for ammonia gas –
(c) A solvent for paint –
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(a) Coloured extracts of grass dissolved in ethanol.
(b) Kerosine from Crude oil.
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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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ii) Identify the ions and cations in the solution.
iii) On the diagram label the cathode.
iv) Write ionic equations for the reactions that took place at the anode
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Date posted: March 19, 2019. Answers (1)
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Date posted: March 19, 2019. Answers (1)
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(b)Explain your answer in (a) above.
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(c) Giving a reason, which substance undergoes reduction above.
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Date posted: March 19, 2019. Answers (1)