| A | B |
| Reactant | A substance that is being consumed during a chemical reaction. |
| Product | A substance that is being formed or created during a chemical reaction. |
| Catalyst | A substance that will speed up a chemical reaction by lowering the activation energy. |
| Chemical Reaction | A process where substances undergo chemical change to break and form chemical bonds in new ways. |
| Synthesis Reaction | A + B --> AB |
| Decomposition | AB --> A + B |
| Combustion | Hydrocarbon + O2 --> CO2 + H2O |
| Single Replacement | A + BC --> B + AC |
| Double Replacement | AB + CD --> AD + CB |
| Cellular Respiration | Glucose + O2 --> CO2 + H2O |
| Photosynthesis | CO2 + H2O --> Glucose + O2 |
| --> (triangle) | Heat is used to catalyze the reaction |
| --> (hv) | Light is used to catalyze the reaction. |
| --> (STP) | The reaction is done at Standard Temperature and Pressure. (1 atm and 0 degrees C) |
| <--> | The reaction is reversible |
| (s) | solid |
| (l) | liquid |
| (g) | gas |
| (aq) | aqueous |