click below
click below
Normal Size Small Size show me how
Chemical Reactions
Term | Definition |
---|---|
Chemical Reaction | The process by which one or more substances change to produce one or more different substances |
Precipitate | A solid that is produced as a result in chemical reaction in solution |
Chemical Formula | A combination of chemical symbols and numbers to represent a substance |
Chemical Equation | A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products |
Reactant | A substance or molecule that participates in a chemical reaction |
Product | The substance that forms in a chemical reaction |
Law of Conservation of Mass | the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes |
Synthesis Reaction | a reaction in which two or more substances combine to form a new compound |
Decomposition Reaction | a reaction in which a single compound breaks down to form two or more simpler substances |
Single-Displacement Reaction | a reaction in which one element or radical takes the place of another element or radical in a compound |
Double-Displacement Reaction | a reaction in which a gas, a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds |
Exothermic Reaction | a chemical reaction in which heat is released to the surroundings |
Endothermic Reaction | a chemical reaction that requires heat |
Law of Conservation of Energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
Activation Energy | the minimum amount of energy required to start a chemical reaction |
Inhibitor | a substance that slows down or stops a chemical reaction |
Catalyst | a substance that changes the rate of chemical reaction without being used up or changed very much |