Which of the following describes the reactants of a chemical reaction? A. The substances that dissolve B. The atoms that are rearranged C. The original substances D. The resulting substances

The original substances in a chemical reaction are the ones that undergo transformation during the process. They are what you start with before the reaction kicks off, and they will change into different products after the reaction has taken place. In chemical reactions, these reactants interact in specific ways, breaking bonds and forming new ones, leading to the formation of products. For example, when hydrogen and oxygen gas react, they form water, showcasing how reactants become completely new substances through their interactions!