Question

(grade 10 ch 1 chemical reactions and equation)give an example of a combination reaction which is exothermic ???

Answer 1

HEY mate here is your answer:-
example of combination reaction are as follows

C+O2---->CO2+q
H2+O2---->2H2O+q

#note: every combination reaction are exothermic reaction.

hope it helps you

Answer 2

C + O2 = CO2 + heat and light.
CaO + H2O = Ca (OH)2 + heat energy.
HOPE IT HELPS YOU. ...