AnswersTX-Chemistry B-CRHeatQuestion 9
9
QuizMultiple Choice

Heat

Question 9 • TX-Chemistry B-CR

Which reaction is exothermic?

Answer
A
CH4 + 2O2 CO2 + 2H2O + 891 kJ
Option A
B
NH4NO3 + H2O + 25 kJ NH4+(aq) + NO3-(aq)
Option B
C
2H2O + 286 kJ 2H2 + O2
Option C
D
N2 + O2 + 181 kJ 2NO
Option D
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