Circulated Hydrocarbon would be one that is freely moving through something or an enclosed area while uncirculated hydrocarbon would be one that is concentrated on one part of the system.
Jayne Wathira answered the question on February 11, 2019 at 15:25
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Two students A and B are taking milk using a straw. A is standing on top of a high mountain while B stands at the foot of the mountain. State with a reason which student takes the milk more easily.
Date posted: January 21, 2019. Answers (1)
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If magnesium ribbon was used in place of calcium, explain why it was necessary to clean the magnesium with steel wool before its reaction with Water.
Date posted: January 21, 2019. Answers (1)
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Date posted: January 21, 2019. Answers (1)
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Date posted: January 21, 2019. Answers (1)
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Date posted: January 7, 2019. Answers (1)
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Date posted: January 5, 2019. Answers (1)
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Date posted: January 3, 2019. Answers (1)
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Date posted: January 2, 2019. Answers (1)
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In an experiment a piece of magnesium ribbon was cleaned with steel wool 2.4g of the clean ribbon was placed in a crucible and completely burnt in oxygen.after cooling the product weighted 4.0g.
(a)explain why it was necessary to clean the magnesium ribbon?
(b)what observation was made in the crucible after burning?
(c)why was there an increase in mass?
(d)write the equation for reaction which took place in the crucible?
(e)the product in the crucible was shaken with water and filtered. Explain the observation which was made when blue and red litmus papers were dropped into the filtrate.
Date posted: December 30, 2018. Answers (1)
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A student crushed the seeds and then added propane instead of water to extract oil from castor oil seeds. Why did he use propane instead of water and why were the seeds first crushed?
Date posted: December 26, 2018. Answers (1)
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Date posted: December 20, 2018. Answers (1)
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Date posted: December 20, 2018. Answers (1)
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Date posted: December 16, 2018. Answers (1)
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Date posted: December 12, 2018. Answers (1)
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1. State what was observed
2. Name the process that took place
3....(Solved)
Crystals of sodium carbonate decahydrate were exposed to air for about four days
1. State what was observed
2. Name the process that took place
3. Write an equation for the reaction that occurred
Date posted: December 11, 2018. Answers (1)
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Date posted: December 7, 2018. Answers (1)
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Date posted: December 6, 2018. Answers (1)
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When a few drops of potassium permanganate are added to an aqueous solution of ferrous sulphate, solution turns brown. On the other hand, when the test is repeated using sodium molybdate instead of potassium permanganate no similar colour change is observed.
Date posted: November 29, 2018. Answers (1)
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Date posted: November 27, 2018. Answers (1)