In your own words, explain the difference between an endothermic and exothermic chemical reaction. Also, provide an example of each process. (3 points)
An endothermic chemical reaction is one in which energy is absorbed from the surroundings. This means that the reactants have lower energy than the products, and energy is required for the reaction to occur. As a result, the surroundings may feel cooler after an endothermic reaction. An example of an endothermic reaction is the process of photosynthesis, in which plants convert sunlight into chemical energy.
On the other hand, an exothermic chemical reaction is one in which energy is released to the surroundings. In this type of reaction, the reactants have higher energy than the products, and energy is released as the reaction proceeds. This often results in an increase in temperature in the surroundings. An example of an exothermic reaction is the combustion of wood, where the energy trapped in the bonds of the wood is released as heat and light.