Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch 10 Sect 2 Gr 7
Chemistry terms
| Question | Answer |
|---|---|
| chemical equation | the representation that uses symbols, subscripts, coefficients and formula to show what happens in a chemical reaction |
| symbol | the one or two letter abbreviation for an element |
| chemical formula | abbreviation of a compound's name; includes symbols and subscripts |
| subscript | the number to the right and below a symbol to indicate the number of atoms present |
| reactants | the substance(s)that are present at the beginning of a chemical reaction; placed on the left side of a chemical equation |
| products | the substance(s) that are at the conclusion of a chemical reaction; placed on the right side of a chemical equation |
| conservation of mass | the scientific law that states that mass cannot be created or destroyed in ordinary chemical and physical changes |
| coefficient | the number written in front of a chemical formula; shows the number of molecules present |
| synthesis | type of chemical reaction in which 2 or more reactants produce one product |
| decomposition | type of chemical reaction in which one reactant breaks down into 2 or more products |
| replacement | type of chemical reaction in which one element replaces another element in a compound or in which 2 elements in different compounds trade place |
Created by:
Sciteach6