Across
- 4. - Basic unit of matter
- 8. - Force holding atoms together in a molecule
- 9. - Measure of the average kinetic energy of particles
- 11. - A group of atoms bonded together
- 12. - Substance with a pH level less than 7
- 15. - Homogeneous mixture of substances
- 16. - Table that organizes elements by atomic number
- 18. - Transformation of one or more substances into others
- 19. - State of matter with no fixed shape or volume
- 20. - Representation of a chemical compound
Down
- 1. - State of matter with a definite volume but no fixed shape
- 2. - Substance with a pH level greater than 7
- 3. - Substance formed by combining elements
- 5. - State of matter with a definite shape and volume
- 6. - Substance that speeds up a chemical reaction
- 7. - Substance consisting of one type of atom
- 10. - Process in which substances change chemically
- 13. - Substance with a distinct composition
- 14. - Large molecule made up of repeating units
- 17. - Charged particle formed by gaining or losing electrons