| A | B |
|---|
| Reactants | the substances that undergo change in a chemical reaction |
| Products | the new substances formed as a result of the change in a chemical reaction |
| Chemical Equation | a representation of a chemical reaction in which reactants and products are expressed as formulas |
| Coefficients | the numbers that appear before the formulas in a chemical equation |
| Mole | an amount of substance that contains approximately 6.02x10(23) particles of that substance |
| Molar Mass | the mass of one mole of substance |
| Synthesis Reaction | a reaction in which two or more substances react to form a single substance |
| Decomposition Reaction | a reaction in which a compound breaks down into two or more simpler substances |
| Single-replacement Reaction | a reaction in which one element takes the place of another element in a compound |
| Double-replacement Reaction | a reaction in which two different compounds exchange positive ions and form two new compounds |
| Combustion Reaction | a reaction in which a substance reacts rapidly with oxygen, often producing heat and light |
| Oxidation-reduction Reaction | a reaction in which electrons are transfered from one reactant to another, also called a redox reaction |
| Chemical Energy | the energy stored in the chemical bonds of a substance |
| Exothermic Reaction | a chemical reaction that releases energy to its surroundings |
| Endothermic Reaction | a chemical reaction that absorbs energy from its surroundings |
| Reaction Rate | the rate at which reactants change into products over time |
| Catalyst | a substance that affects the reaction rate without being used up in the reaction |
| Equilibrium | a state in which the forward and reverse paths of a change take place at the same rate |
| Reversible Reaction | a reaction in which the conversion of reactants into products and the conversion of products into reactants can happen simultaneously |
