The document discusses reaction rates and factors that affect them. It provides examples of rate laws and calculations of reaction rates using rate constants and reactant concentrations. Specifically: 1. Reaction rates can be affected by chemical nature, surface area, concentration, temperature, and presence of catalysts. 2. Rate laws relate the rate of reaction to concentrations of reactants using rate constants and exponents. 3. The order of a reaction is the sum of exponents in its rate law and indicates how the rate changes with changes in concentration.