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Physical Science
Chemical Reactions
| Term | Definition |
|---|---|
| acid | A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus red |
| catalyst | A material that increases the rate of a reaction by lowering the activation energy |
| chemical reaction | The process in which substances undergo chemical changes that result in the formation of new substances |
| chemistry | The study of the properties of matter and how matter changes |
| conservation of mass | The principle stating that matter is not created or destroyed during a chemical reaction |
| decomposition | A chemical reaction that breaks down compounds into simpler products |
| indicator | A compound that changes color in the presence of an acid or a base |
| pH scale | A range of to express values used to express the concentration of hydrogen ions in a solution |
| precipitate | A solid that forms from a solution during a chemical reaction |
| product | A substance formed as a result of a chemical reaction |
| reactant | A substance that enters into a chemical reaction |
| synthesis | A chemical reaction in which two or more simple substances combine to form a new, more complex substance |