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i) Hydrogen
ii) So that all ammonia gas can be converted to nitrogen (II) oxide and further oxidize nitrogen (II)
oxide to nitrogen (IV) oxide.
(iii) Nitrogen (II) oxide
(iv) NH3(g) + HNO3(aq) $\rightarrow$ NH4NO3(aq)
v) In making fertilizer
Used in laundry
johnmulu answered the question on April 15, 2017 at 07:22
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A student set up the apparatus shown below to prepare ammonia gas and react it with copper (II) sulphate solution
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b) State the observations which were made in the beaker.
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
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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:
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Date posted: April 15, 2017. Answers (1)
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The diagram below shows a set-up that can be used to obtain nitrogen gas in an experiment.
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(ii) What observation would be made in tube K after heating for some time?
(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 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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(Solved)
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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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Use the information in the table below to answer the questions that follow. The letters do not represent the actual symbols of the elements
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(i) S is higher than that of R;
(ii) V is lower than of U.
b) How does the reactivity of W with chlorine compare with that of R with chlorine? Explain.
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)
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(The letters are not the symbols of the elements)
(Solved)
Use the information in the table below to answer the questions that follow.
(The letters are not the symbols of the elements)
Identify a letter which represents an element in the table that could be calcium, carbon or sulphur. Give a reason in each case.
i) Calcium ii) Carbon iii) Sulphur:
Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
- Use the information in the table below to answer the questions that follow. The letters do not represent the actual symbols of the elements.(Solved)
Use the information in the table below to answer the questions that follow. The letters do not represent the actual symbols of the elements.
a) Give reasons why the melting point of:
i) S is higher than that of R;
ii) V is lower than that of U.
b) How does the reactivity of W with chlorine compare with that of R with chlorine? Explain
c) Write an equation for the reaction between T and excess oxygen.
d) Give one use of element V.
Date posted: April 12, 2017. Answers (1)
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The chart below is part of the periodic table. Study it and answer the questions that follow. (The letters are not the actual symbols of the elements)
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ii) Element F has the electronic structure, 2.8.18.4. On the chart above, indicate the position of element F.
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Date posted: April 12, 2017. Answers (1)