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Chemistry, 16.01.2020 06:31 emanuelmorales1515

Which reaction is exothermic?
ch4 + 2o2 --> co2 + 2h2o + 891 kj
nh4no3 + h2o + 25 kj --> nh4+(aq) + no3-(aq)
2h2o + 286 kj --> 2h2 + o2
n2 + o2 + 181 kj--> 2no

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Which reaction is exothermic?
ch4 + 2o2 --> co2 + 2h2o + 891 kj
nh4no3 + h2o + 25 kj...
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