Question

Is 3Fe + 2O2 → Fe3O4 ΔH = -1120.5kJ an exothermic or endothermic equation

Answer 1

If dH is negative it means the reaction is releasing heat so it is exothermic.

Answer 2

reaction endothermic or exothermic?

3Fe + 2O2 → Fe3O4

ΔH= −1120 kJ


exothermic

endothermic