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Crush the nuts using mortar and pestle, then add appropriate solvent such as acetone. Filter the mixture to get a solution of oil in acetone as the filtrate.
Expose the filtrate to sun for acetone to evaporate leaving oil in the dish.
raphael answered the question on February 1, 2017 at 05:19
- A sample of water in a beaker was found to boil at 101o C at 1 atmospheric pressure.(Solved)
A sample of water in a beaker was found to boil at 101o C at 1 atmospheric pressure. Assuming that the thermometer was not faulty, explain this observation.
Date posted: February 1, 2017. Answers (1)
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Date posted: January 31, 2017. Answers (1)
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Hydrated cobalt (II) chloride exists as pink crystals and anhydrous cobalt (II) chloride is a blue powder. Describe a laboratory experiment that can be used to show that the action of heat on hydrated cobalt (II) chloride is a reversible action.
Date posted: January 31, 2017. Answers (1)
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State and explain the change in mass that occurs when the following substances are separately heated in open crucibles.
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(b) Copper (II) nitrate
Date posted: January 31, 2017. Answers (1)
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The diagram below shows a Bunsen burner when in use.
Date posted: January 28, 2017. Answers (1)
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Date posted: January 28, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)
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Define what a fuel is.
Date posted: January 16, 2017. Answers (1)
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What is molar heat of vaporization? Explain.
Date posted: January 16, 2017. Answers (1)
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Explain why graphite can be used as a lubricant while diamond cannot.
Date posted: January 16, 2017. Answers (1)
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Diamond and graphite are crystalline forms of cation. State two non crystalline (Amorphous) form of carbon.
Date posted: January 16, 2017. Answers (1)
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State observations made when excess hydrogen suphide gas is bubbled into copper (II) sulphate solution.
Date posted: January 16, 2017. Answers (1)
- A student attempted to prepare hydrogen sulphide gas and collected the gas over cold water(Solved)
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Date posted: January 16, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)
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A form three student added sodium carbonate solution to a solution of aluminium chloride in water. A white precipitate was formed. The precipitate soon dissolved liberation a colourless gas.
i) What is the white precipitate?
ii) Explain why the precipitate dissolves?
Date posted: January 16, 2017. Answers (1)
- Magnesium and silicon are both in period III of the periodic table(Solved)
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Date posted: January 16, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)
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Name a pair of suitable reagents that can be used to prepare nitrogen (II) oxide in the laboratory.
Date posted: January 16, 2017. Answers (1)
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State Graham's law.
Date posted: January 16, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)