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Chemical reaction
Term | Definition |
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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 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 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 add in a compound |
double-displacement reaction | A reaction in which a gas, a solid, participate, 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 to another |
activation energy | The minimum amount of energy required to start a chemical reaction. |
inhibiter | A substance that slows down or stops a chemical reaction. |
catalyst | A substance that changes the rate of a chemical reaction without being wasted up or used very much. |