Reactant: This is a substance that starts off a chemical reaction. They're like the ingredients in our recipe analogy.
Product:This is what's formed from the reactants during a chemical reaction. In our cooking analogy, this would be your finished dish.
Coefficient: This is a number placed in front of symbols or formulas in an equation to indicate how many molecules or atoms of each reactant and product are involved in a reaction. It's like telling you how many cups or tablespoons of each ingredient you need for your recipe.