👉 Catalysts are substances that can react with a chemical reaction to increase its rate of occurrence or efficiency. They act as intermediates in the reaction, helping to speed up the process and making it more efficient. The specific type of catalyst depends on the chemical reactions being carried out, but some common examples include metal oxides (e.g., zinc oxide for combustion), organic compounds that provide a base or ionizing agent, and enzymes that catalyze reactions.
