Chemistry · May / June 2018 · Paper 21 · Question 1
5070
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Choose from the gases to answer the questions. argon carbon dioxide carbon monoxide ethane hydrogen methane neon ozone sulfur dioxide sulfur trioxide Each gas can be used once, more than once or not at all. Which gas:
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1(a)[1]
1(b)[1]
1(c)[1]
1(d)[1]
1(e)[1]
1(f)[1]
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