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Which of these samples of gas contains the same number of atoms as 19 of hydrogen
(M, : H2.2)?
A 22g of carbon dioxide (M: CO2.44)
B 8g of methane (M: CH, 16)
C 20g of neon (M.: Ne, 20)
D 8g of ozone (M: 03. 48)
CAM
May/June 2004, Q1
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Answer:9
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