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Which one of the following parts of gase...

Which one of the following parts of gases contains the same number of molecules?

A

`16g " of "O_(2)and14 g " of "N_(2)`

B

`8g " of "O_(2)and22 g " of " CO_(2)`

C

`28 g " of " N_(2)and 22 g " of " CO_(2)`

D

`32g " of " O_(2)and 32g " of " N_(2)`

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