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i) Nitrogen (II) Oxide (NO)
ii) 4NH$4NH_{3(g)}+ 3CUO \rightarrow 2N_{2(g)} + 3H_2O_{(l)} + 3Cu$
Oxidation number of reducing agent increases hence ammonia is the reducing agent
Oxidation number of reducing agent increases hence ammonia is the reducing agent
Oxidation number of copper (Cu) decreases from + 2 to O hence an oxidizing agent
iii) NH$_4NO_{3(s)} \rightarrow N_2O_{(g)} + 2H_2O_{(g)}$
johnmulu answered the question on April 20, 2017 at 07:07
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Date posted: April 20, 2017. Answers (1)
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Date posted: April 20, 2017. Answers (1)
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Date posted: April 20, 2017. Answers (1)
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State:
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Date posted: April 20, 2017. Answers (1)
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Date posted: April 18, 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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(Solved)
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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 15, 2017. Answers (1)
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ii) Name another substance that can be used instead of potassium nitrate.
iii) Give one use of nitric (V) acid
Date posted: April 15, 2017. Answers (1)
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(Solved)
The flow chart below shows some reactions starting with lead (II) nitrate. Study it and answer the questions that follow.
i) State the condition necessary in step 1.
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II. Gas Q.
III. Acidic products S and R.
Date posted: April 15, 2017. Answers (1)
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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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Study the flow chart below and answer the questions that follow.
(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
(v) Give one use of ammonia nitrate.
Date posted: April 15, 2017. Answers (1)
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Date posted: April 15, 2017. Answers (1)
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The flow chart below shows the industrial preparation of ammonia and the process used in the manufacture of some ammonium compounds. Study it and answer the questions that follow.
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.
e) Name the catalyst and the reagents used in step 3.
f) Name compound Z 1
g) Give one commercial use of compound Z2
Date posted: April 15, 2017. Answers (1)
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The diagram below represents a set up that was used to obtain dry nitrogen from air. Study it and answer the questions that follow:
(i) Name solid Q.
(ii) What is the purpose of sodium hydroxide?
(iii) Give the name of one impurity present in the nitrogen gas obtained.
(iv) Give a reason why liquid nitrogen is used for storage of semen for artificial insermination
Date posted: April 15, 2017. Answers (1)