Phiarie Phiarie

07-05-2017
Chemistry

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Please help in Chemistry!!!! 15 points! I added a picture below...

Please help in Chemistry 15 points I added a picture below class=

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07-05-2017

the answer would be choice B because the energy decreased by 20 J

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rachel73 rachel73

07-05-2017

Yeah, the answer would be choice B because it drops from 40 to 20 so it's -20

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