Essential Chemistry for IGCSE - Chemical Reactions (Section 5 - No. 11)
If a reaction is exothermic, what does this mean about the energy change?
The products have less energy than the reactants.
The products have more energy than the reactants.
The energy change is zero.
Energy is neither released nor absorbed.
Explanation
In an exothermic reaction, energy is released, and the products have lower energy than the reactants.
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