Science, asked by gurnamchoudhary23245, 7 months ago

which is an exothermic reaction
C+O2 =CO2 + 394KJ
N2+O2=2NO-180KJ
CaCO3=CaO+CO2-heat
none of these

Answers

Answered by geetha2619868

0

Answer:

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Answered by yashu6647

2

Answer:

CaCO3 = CaO + CO2 - heat

Explanation:

It is an exothermic reaction because heat is released as a by product.

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