a) i) Heat
ii) I. Reagent K: Potassium carbonate (K2CO3)(aq) or
Sodium carbonate or
Ammonium carbonate
II. Gas Q is oxygen
III. S - Nitric (V) acid, R - Nitrous acid (nitric (III) acid)
johnmulu answered the question on April 15, 2017 at 07:49
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b) State and explain a precaution that must be taken before heating is stopped.
Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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(i) Name element M.
(ii) Why is it necessary to use excess air in step 4?
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(iv) Write an equation for the reaction in step 7
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Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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a) Give the name of the:
(i) Process in step 1.
(ii) Reaction that takes place in step 5.
b) State one other source of hydrogen gas apart from natural gas.
c) Explain why it is necessary to compress nitrogen and hydrogen in this process.
d) Write an equation for the reaction which takes place in step 6.
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Date posted: April 15, 2017. Answers (1)
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(iii) Give the name of one impurity present in the nitrogen gas obtained.
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Date posted: April 15, 2017. Answers (1)
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(iii) Write an equation for the reaction that took place in tube K.
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Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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Date posted: April 13, 2017. Answers (1)
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Date posted: April 13, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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c)Draw the structure of the monomer used to manufacture the polymer.
Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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(i) S is higher than that of R;
(ii) V is lower than of U.
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c) Write an equation for the reaction between T and excess oxygen.
d) Give one use element V.
Date posted: April 12, 2017. Answers (1)