CHY 104 Lecture Notes - Lecture 5: Single Displacement Reaction, Oxidation State, Chemical Equation
Document Summary
Chemical equations are a convenient way to represent chemical reactions. Chemical equations are written in terms of reactants and products. A symbol is written in parentheses to the right of each reactant and product to indicate the state or form in which the substance exists. Gases are indicated by (g), liquids by (l), solids by (s), and substances dissolved in water by (aq). The reactants in a chemical equation are the substances that undergo chemical change during the reaction. They are written on the left side of the arrow that points toward the products. When two or more reactants are involved in an equation, they are separated by a plus sign (+). The products in a chemical equation are the substances produced as a result of the reaction taking place. They are written on the right side of the arrow. When two or more products are involved in an equation, they are separated by a plus sign (+).