Adding reactions

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William Lan 2l
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am

Adding reactions

Postby William Lan 2l » Wed Jan 24, 2018 7:25 pm

How come when you add N2 + 02 -> 2 NO with 2 NO + O2 -> 2NO2 you get N2 + 2O2 -> 2NO2? Is it because the 2 NO from the first reaction cancels out the 2 NO from the second reaction?

Nishma Chakraborty 1J
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: Adding reactions

Postby Nishma Chakraborty 1J » Wed Jan 24, 2018 7:30 pm

Yeah, the NO in the first reaction cancels with the NO in the second reaction! :)

Amanda Wu 2C
Posts: 31
Joined: Sat Jul 22, 2017 3:00 am

Re: Adding reactions

Postby Amanda Wu 2C » Wed Jan 24, 2018 8:13 pm

Yes, it's because the 2NO produced as a product in the 1st reaction is used up as a reactant in the 2nd reaction (aka the NO serves as an intermediate between the two reactions). Therefore, the 2NO does not appear in the total net reaction.

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