a) i) The thermometer is dipped in the mixture
ii) The direction of water flow is wrongly placed.
b) Check for its boiling point which should be 56o
johnmulu answered the question on April 5, 2017 at 08:49
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The curve below represents the variation of temperature with time pure and impure samples of a solid were heated separately.
Which curve shows the variation in temperature for pure solid? Explain.
Date posted: April 5, 2017. Answers (1)
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b) What is meant by a radioactive substance
c) State two dangers associated with radioactive substance in the environment(Solved)
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Date posted: February 22, 2017. Answers (1)
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M grammes of a radioactive isotope decayed to 5 grammes in 100 days
The half-life of the isotope is 25 days
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b) Calculate the initial mass M of the radioactive isotope.
Date posted: February 22, 2017. Answers (1)
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Determine the empirical formula of the alkanol (C = 12.0: H = 1.0; O = 16.0)(Solved)
An alkanol has the following composition by mass: Hydrogen 13.5%, oxygen 21.6% and carbon 64.9%
Determine the empirical formula of the alkanol (C = 12.0: H = 1.0; O = 16.0)
Date posted: February 22, 2017. Answers (1)
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Date posted: February 22, 2017. Answers (1)
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State two uses of ethanol other than as an alcoholic drink
Date posted: February 22, 2017. Answers (1)
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Date posted: February 22, 2017. Answers (1)
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Date posted: February 22, 2017. Answers (1)
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Date posted: February 22, 2017. Answers (1)
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a) Margarine
b) Soap.
Date posted: February 22, 2017. Answers (1)
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Date posted: February 21, 2017. Answers (1)
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a) What is the name given to a compound that contains carbon and hydrogen only?
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i) What method is used to obtain hexane from crude oil
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Date posted: February 21, 2017. Answers (1)
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Date posted: February 21, 2017. Answers (1)