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AP chem gases

 
 

D. HBr and NH3

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Brad M. | Professional Tutor: Ultra Streamlined Math - Physics - AccountingProfessional Tutor: Ultra Streamlined M...
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Hey Qing -- diffusion depends on mass ... look for a combo with identical masses ...
 
HCl is 36 ... NH3 is 17 ... CH3NH2 is 31 ==> go with A ... Best regards :)