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voc chem reactions
vocabulary words 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 | the small umber to the right 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. |
single 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 reactions. |
law of conservation of mass | states that mass is neither created nor destroyed in a chemical reaction. |