| A | B |
|---|
| Reactant | A substance that underoges change in a chemical reaction |
| Products | New substances formed as a result of a chemical reaction |
| Chemical Equation | A representation of a chemical reaction in which the reactants and products are expressed as formulas |
| Coefficients | Numbers that appear beofre a formula in a chemical equation to show the relative proportions of each reactant and product |
| Mole | an amount of a substance that contains aporximately 6.02 X 10^23 particles of the substance |
| Molar Mass | The mass of one mole of a substance |
| Synthesis reaction | A chemical reaction in which two or more sunstances react to form a single substance |
| Decomposition reaction | A chemical reaction in which a compound breaks down into two or more simpler substances. |
| Single-replacement reaction | A chemical reaction in which one element takes the place of another element in a compound |
| Double-replacement reaction | A chemical reaction in which two compounds exchange positive ions and form two new compounds |
| Combustion reaction | A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light |
| Oxidation-reduction reaction | A chemical reaction in which electrons are transferred from one reactant to another |
| Chemical energy | The energy stored in chemical bonds |
| Exothermic reaction | A chemcial reaction that releases energy to its surroundings |
| Endothermic reaction | A chemical reaction that absorbs emergy from its surroundings |
| Reaction rate | The rate at which reactants change intoproducts over time |
| Catalyst | a substance that affects he rate of a chemical reaction without ebing used up in the reaction |
| Equilibrium | A state in which the forward and reverse paths of a physical or chemical change take place at the same rate |
| Reversible reaction | A chemical reaction in which the conversion of reactants into products and the conversion of products into reactants happens at the same time |
