, Answer ALL questions.
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1 This question is about gases in the atmosphere.
(a) The box gives the names of some gases in the atmosphere.
argon carbon dioxide helium nitrogen oxygen
Choose gases from the box to answer these questions.
Each gas may be used once, more than once or not at all.
(i) Identify a noble gas.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(ii) Identify a gas that makes up about 78% of the atmosphere.
(1)
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.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(iii) Identify a greenhouse gas.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(iv) Identify a gas produced by the thermal decomposition of calcium carbonate.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(b) Sulfur reacts with oxygen to produce sulfur dioxide gas.
(i) Write a chemical equation for this reaction.
(1)
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.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(ii) State an environmental problem caused when sulfur dioxide gas dissolves in
water in the atmosphere.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(Total for Question 1 = 6 marks)
3
*P59923A0328* Turn over
, Answer ALL questions.
1 The table shows some information about five gases.
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Formula Boiling point
Gas
of molecule in °C
chlorine Cl2 –35
oxygen O2 –183
carbon monoxide CO –191
nitrogen N2 –196
hydrogen H2 –253
Choose gases from the table to answer this question.
You may use each gas once, more than once, or not at all.
(a) Name the gas that is a compound.
(1)
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.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(b) Name the gas necessary for rusting to occur.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(c) Name the gas that bleaches moist litmus paper.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(d) Name the gas that has the highest percentage by volume in air.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(e) Name the gas that has the highest boiling point.
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(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(f ) Determine the two gases that have the same relative formula mass.
(1)
1 .... .. ...... ................ .. .... . ...... ....... .... .. .. .. .. . .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. . . .. . . .. . . . ... .. . . .. . . . .. . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .......................................... .....................
2 .... .. ...... ................ .. .... . ...... ....... .... .. .. .. .. . .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. . . .. . . .. . . . ... .. . . .. . . . .. . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .......................................... .....................
(Total for Question 1 = 6 marks)
3
*P53147A0320* Turn over
DO NOT WRITE IN THIS AREA
1 This question is about gases in the atmosphere.
(a) The box gives the names of some gases in the atmosphere.
argon carbon dioxide helium nitrogen oxygen
Choose gases from the box to answer these questions.
Each gas may be used once, more than once or not at all.
(i) Identify a noble gas.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(ii) Identify a gas that makes up about 78% of the atmosphere.
(1)
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.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(iii) Identify a greenhouse gas.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(iv) Identify a gas produced by the thermal decomposition of calcium carbonate.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(b) Sulfur reacts with oxygen to produce sulfur dioxide gas.
(i) Write a chemical equation for this reaction.
(1)
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.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(ii) State an environmental problem caused when sulfur dioxide gas dissolves in
water in the atmosphere.
(1)
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
.. ... .. ... .................... . .... ... ... ... .... .. .... .. . ... . ... . ... . .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. .. . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . .. . ... ....... ........ ....... ........ ....... .............................
(Total for Question 1 = 6 marks)
3
*P59923A0328* Turn over
, Answer ALL questions.
1 The table shows some information about five gases.
DO NOT WRITE IN THIS AREA
Formula Boiling point
Gas
of molecule in °C
chlorine Cl2 –35
oxygen O2 –183
carbon monoxide CO –191
nitrogen N2 –196
hydrogen H2 –253
Choose gases from the table to answer this question.
You may use each gas once, more than once, or not at all.
(a) Name the gas that is a compound.
(1)
DO NOT WRITE IN THIS AREA
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(b) Name the gas necessary for rusting to occur.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(c) Name the gas that bleaches moist litmus paper.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(d) Name the gas that has the highest percentage by volume in air.
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(e) Name the gas that has the highest boiling point.
DO NOT WRITE IN THIS AREA
(1)
.. ... .. .... .. ............... .. .... . ...... ....... ...... . .. .. .. .. .. .. . ... .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. . .. .. .. . . .. . . . .. . . .. . . .. . . .. . . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . ....................................................................
(f ) Determine the two gases that have the same relative formula mass.
(1)
1 .... .. ...... ................ .. .... . ...... ....... .... .. .. .. .. . .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. . . .. . . .. . . . ... .. . . .. . . . .. . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .......................................... .....................
2 .... .. ...... ................ .. .... . ...... ....... .... .. .. .. .. . .. .. .. .. . .. .. .. .. .. . .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. . . .. . . .. . . . ... .. . . .. . . . .. . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . .......................................... .....................
(Total for Question 1 = 6 marks)
3
*P53147A0320* Turn over
