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Chemical reactions
Term | Definition |
---|---|
chemical formula | a shorthand way to use chemical symbols and numbers to represent a substance. |
chemical equation | uses symbols to show the relationship between the reactants and the products. |
subscript | small number to the right side of the element that shows how many atoms there are of the element. |
coefficient | the large number that multiplies atoms of the element. |
Reactant | A substance or molecule that starts a chemical reaction |
Product | The substance that forms as a result of chemical reaction. |
Chemical Reaction | When atoms of elements break apart and rearrange to become new substances. |
Synthesis Reaction | when two or more substances combine to create one new compound. |
Decomposition Reaction | A reaction where a single compound breaks down to form 2 simpler substances. |
Simple-Displacement Reaction. | One element replaces another element in compound leaving a new compound and 1 element. |
Double-Displacement Reaction | The 2 metal ions in 2 compounds switch places in a chemical reaction. |
Law of Conservation of Mass | States that mass is neither created or destroyed in a chemical reaction. |