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 of a chemical reaction in solution. |
Chemical Formula | a combination of a 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 | a substance that forms in a chemical reaction. |
Law of Conservation of Mass | a law that states that mass cannot be created or destroyed in an 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 takes the place of another element in a compound. |
Double-Displacement Reaction | a reaction which a gas a solid precipitate or a molecule 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 can not be created or destroyed but can can be changed from one form to another. |
Activation Energy | the minimum amount of energy required to start a chemical reaction. |
Inhiitor | a substance that slows down or stops a chemical reation |
Catalyst | a substance that changes the rate of a chemical reaction without being used up or changed very much. |