A candle and a firework both can be ignited with a spark, but they release different amounts of energy as they burn. Compare and contrast the potential energy diagrams that would represent each of these burning processes.
The reactions of both candle and firework is exothermic. This means that the products have a lower potential energy than the reactants. The difference is that fireworks release more energy than the candle. In the energy curve diagrams, the fireworks will begin with a more potential energy.