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vocab chemical react
vocabulary words chemical reactions
Term | Definition |
---|---|
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 elemnet |
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 nor destroyed in a chemical reaction |
Chemical Formula | A shorthand way to use chemical symbols and numbers to represent a substance (H2O) |
Chemical Equation | Uses symbols to show the relationship between the reactants and the products C+O2-->CO2 |
SUBSCRIPT | (H2O)-small number to the right of the element that shows how many atoms there are in the elemnet |
COEFICIENT | the large number that multipies atoms in the element (2Cl + 3Na) |
Reactant | a subatance or molecule that starts a chemical reaction Mg + O2 ---> |
Product | the substance that forms as a result of a chemical reaction ----> MgO2 |