Across
- 2. A reaction where a single compound breaks down into two or more simpler substances.
- 3. The substance that is formed as a result of a chemical reaction.
- 6. A type of energy involved in chemical reactions, especially endothermic and exothermic processes.
- 8. states the principle that mass is neither created nor destroyed in a chemical reaction.
- 9. A solid that forms and settles out of a liquid solution in a chemical rea
- 11. A substance that speeds up a chemical reaction without being consumed.
Down
- 1. The small number in a chemical formula that indicates the number of atoms of an element.
- 4. A chemical reaction in which a substance reacts with oxygen, often producing heat and light.
- 5. A reaction in which two or more substances combine to form a single product.
- 7. A symbolic representation of a chemical reaction using element symbols and formulas.
- 10. A substance that starts a chemical reaction and is consumed during the process.