Grey beads will be formed on the cathode and reddish-brown gas is evolved at the anod
isaacmuthini answered the question on November 16, 2017 at 08:36
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Date posted: November 16, 2017. Answers (1)
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Date posted: November 15, 2017. Answers (1)
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Date posted: November 15, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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State two factors which determine the speed of photoelectrons emitted from a metal surface
Date posted: November 12, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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Crude oil is a source of many compounds that contain carbon and hydrogen only.
i) Name the process used to separate the components of crude oil.
ii) On what two physical properties of the above components does the separation depend?
Date posted: November 12, 2017. Answers (1)
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During extraction of iron in the blast furnace, state the uses of the following in the furnace.
a) Molten slag
b) Waste gases leaving the furnace
c) Limestone
Date posted: November 12, 2017. Answers (1)
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What observation would be made if chlorine gas is bubbled through aqueous potassium iodide?
Explain
Date posted: November 12, 2017. Answers (1)
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An element in period 4 of the periodic table forms a basic oxide of formula P2O.
a) What is the valency of P?
b) What name is given to the group of elements in which element P belongs
Date posted: November 12, 2017. Answers (1)
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An aqueous solution of hydrogen chloride gas reacts with manganese (IV) oxide to form chlorine gas while a solution of hydrogen chloride in methylbenzene does not react with manganese (IV) oxide. Explain
Date posted: November 12, 2017. Answers (1)
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Date posted: November 12, 2017. Answers (1)
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List two properties of (1)a good precipitating reagent (2)a good precipitate.
Date posted: November 10, 2017. Answers (1)
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Outline the steps of carrying out a Q-test.
Date posted: November 10, 2017. Answers (1)
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Give two examples of each of the following (a)Biological Samples.(b)Agricultural samples.
Date posted: November 10, 2017. Answers (1)
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Name the intermolecular forces of attraction in water.
Date posted: November 9, 2017. Answers (1)
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Carbon (II) oxide, methane and hydrogen are major sources of energy.
i) State and explain three reasons why hydrogen is a very attractive fuel.
ii) State one disadvantage of using hydrogen fuel instead of methane.
Date posted: November 9, 2017. Answers (1)