Decrease kinetic energy of the molecules would decrease
The number of effective collision would decrease
john3 answered the question on November 4, 2017 at 22:51
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Name two raw materials required in the manufacture of Sodium carbonate
Date posted: November 4, 2017. Answers (1)
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Date posted: November 4, 2017. Answers (1)
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Chlorine gas dissolved in distilled water to form chlorine water
(a) Name the compounds present in the chlorine water
(b) What would be observed if blue litmus paper is dipped in chlorine water? Explain.
Date posted: November 4, 2017. Answers (1)
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A student was asked to determine the percentage of zinc metal in a mixture of zinc metal and zinc oxide. He reacted the mixture with excess hydrochloric acid and accurately collected the gas evolved, which was then used to calculate the amount of zinc in the mixture.
(a) Name the gas that was evolved
(b) Apart from the reaction liberating the gas write a balanced equation for the other reaction that took place.
(c) Why would dilute nitric acid not suitable for this reaction?
Date posted: November 4, 2017. Answers (1)
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A sample of water in a beaker was found to boil at 102 at 1 atmospheric pressure. Assuming that the thermometer was not faulty, explain this observation.
Date posted: November 4, 2017. Answers (1)
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Explain why the bleaching action of chlorine is permanent while bleaching by sulphur (IV) oxide is temporary
Date posted: November 4, 2017. Answers (1)
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One of the alloys of copper is brass. State its two uses.
Date posted: November 4, 2017. Answers (1)
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During the extraction of copper metal the ore is subjected to froth floatation. Give a reason why this process is necessary
Date posted: November 4, 2017. Answers (1)
- Explain this observation:When hydrogen chloride gas is dissolved in water, the solution conducts electricity while a solution of hydrogen chloride gas in methyl benzene does...(Solved)
Explain this observation:
When hydrogen chloride gas is dissolved in water, the solution conducts electricity while a solution of hydrogen chloride gas in methyl benzene does not conduct electricity.
Date posted: November 4, 2017. Answers (1)
- Give the agencies of the cation and onion in each of the following compounds. (1)Zinc sulphate (2)Magnesium carbonate (3)Aluminium nitrate (Solved)
Give the agencies of the cation and onion in each of the following compounds.
1)Zinc sulphate
2)magnesium carbonate
3)Aluminium nitrate
Date posted: November 4, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
- 1.(a) Define electrolysis
(b) During the electrolysis of molten aluminium oxide, write the equations at the;
Anode -
Cathode -(Solved)
1.(a) Define electrolysis
(b) During the electrolysis of molten aluminium oxide, write the equations at the;
Anode -
Cathode -
Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
- Describe how sodium sulphate crystals can be prepared starting with 50cm3
of 2M sodium hydroxide and 1M sulphuric
(VI) acid(Solved)
Describe how sodium sulphate crystals can be prepared starting with 50cm3
of 2M sodium hydroxide and 1M sulphuric
(VI) acid
Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
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Date posted: November 3, 2017. Answers (1)
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(i) What is the name of the catalyst used(Solved)
The first step in the industrial manufacture of nitric acid is the catalytic oxidation of ammonia gas.
(i) What is the name of the catalyst used
Date posted: November 3, 2017. Answers (1)