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Chemical Reactions
Term | Definition |
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Chemical Reaction | the process by which one or more substances changes to produce one or more different substances. |
Precipitate | a solid that is produced as result of a 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 | a 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 takes the place of another element in a compounds. |
Double - Displacement Reaction | a reaction in which a gas, a solid precipitate, 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 requires to start a chemical reaction. |
Inhibitor | a compound that can reversibly change color depending on conditions such as pH |
Catalyst | a substance that changes the rate of a chemical reaction without being used up of changed very much. |