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Which one of the following pairs of gases contains
\( \mathrm{P} \) the same number of molecules

W.
(A) \( 16 \mathrm{~g} \) of \( \mathrm{O}_{2} \) and \( 14 \mathrm{~g} \) of \( \mathrm{N}_{2} \)
(B) \( 8 \mathrm{~g} \) of \( \mathrm{O}_{2} \) and \( 22 \mathrm{~g} \) of \( \mathrm{CO}_{2} \)
(C) \( 28 \mathrm{~g} \) of \( \mathrm{N}_{2} \) and \( 22 \mathrm{~g} \) of \( \mathrm{CO}_{2} \)
(D) \( 32 \mathrm{~g} \) of \( \mathrm{O}_{2} \) and \( 32 \mathrm{~g} \) of \( \mathrm{N}_{2} \)
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