| A | B |
|---|
| chemical reaction | process in which one or more substances are changed into new substances |
| reactant | in a chemical reaction, the substance that reacts left side of equation |
| product | in a chemical reaction, the new substance that is formed (found on right side in an equation) |
| chemical equation | shorthand method to describe chemical reactions using chemical formulas and other symbols |
| coefficient | number in a chemical equation that represents the number or units of each substance taking part in a chemical reaction |
| balanced chemical equation | chemical equation with the same number of atoms of each element on both sides of the equation |
| synthesis reaction | chemical reaction in which two or more substances combine to form a different substance |
| decomposition reaction | chemical reaction in which one substance breaks down into two or more substances |
| single-displacement reaction | chemical reaction in which one element replaces another element in a compound |
| double-displacement reaction | chemical reaction that produces a precipitate, water, or a gas when two ionic compounds in solution are combined |
| precipitate | insoluble compound that comes out of solution during a double-replacement reaction |
| exothermic reaction | chemical reaction in which energy is primarily given off in the form of heat |
| endothermic reaction | chemical reaction that requires heat energy in order to proceed |
| catalyst | substance that speeds up a chemical reaction without being permanently changed itself |
| inhibitor | substance that slows down a chemical reaction or prevents it from occurring by combining with a reaction |
| law of conservation of mass | shows 3 things in an equation - 1. same kind of atoms, 2. same number of atoms and 3. same mass before and after reaction. |
| Type of equation: H2 + O2 --> H2O | synthesis |
| Type of equation: KClO3 --> KCl + O2 | decomposition |
| Cu + Ag(NO3) --> Cu(NO)3 + Ag | Single Displacement |
| BaCl2 + H2SO4 --> BaSO4 + HCl | Double Displacement |
