Across
- 3. Negatively charged subatomic particle orbiting the nucleus.
- 6. Substance formed when two or more different elements are bonded.
- 10. Having a pH value greater than 7; basic.
- 11. The loss of electrons during a chemical reaction.
- 12. An enzyme break starch into sugars.
- 13. Atoms of the same element with different numbers of neutrons.
Down
- 1. Two or more atoms chemically bonded together.
- 2. The lightest and most abundant element in the universe, an essential fuel.
- 3. A reaction that releases energy in the form of heat.
- 4. An insoluble solid that forms from a liquid solution during a reaction.
- 5. Process of separating mixtures based on differences in boiling points.
- 6. Type of chemical bond where atoms share electron pairs.
- 7. A hard, crystalline form of carbon, known for its structure and value.
- 8. Large molecule made of many repeating smaller units (monomers).
- 9. Substance that increases the rate of reaction without being consumed.