Gases in the atmosphere and gas tests
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10 Terms
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What is the test for oxygen?
Relight a glowing splint
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What is the test for carbon dioxide?
Bubble through limewater, clear → cloudy
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What is the test for hydrogen?
Lit split produces a squeaky pop
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What percentage of nitrogen is there in the air?
78%
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What percentage of oxygen is there in the air?
21%
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What percentage of argon is there in the air?
0.94%
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What percentage of carbon dioxide is there in the air?
0.04%
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How do you calculate the percentage of oxygen in the air?
start volume - final volume/start volume x 100
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Which gas is referred to as a “green house gas”?
Carbon dioxide
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What is the definition of global warming?
The gradual heating up of the earth’s atmosphere
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