i) Bitumen. It has the highest boiling point.
ii) Fractional distillation. During the distillation petrol would distil off at 175oC and
diesel would distil at 350oC.
iii) Each component is a mixture of hydrocarbons which have different boiling points
johnmulu answered the question on April 12, 2017 at 13:36
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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
a) Give reasons why the melting point of:
(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.
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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)
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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 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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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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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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Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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(i) the name of substance G1
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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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a) Name two reagents that are reacted to produce both carbon (IV) oxide and carbon (II) oxide
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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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The set-up below was used to collect gas F, produced by the reaction between water and calcium metal
(i) Name gas F.
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iii) Give one laboratory use of the solution formed in a beaker
Date posted: April 12, 2017. Answers (1)
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Date posted: April 12, 2017. Answers (1)
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b) Name two uses of carbon (II) oxide gas, which are also uses of hydrogen gas.
Date posted: April 12, 2017. Answers (1)