Across
- 3. increases the rate of a reaction, but isn't consumed by the reaction
- 5. does not change chemical composition
- 7. smaller than an atom
- 10. tastes bitter and feels slippery
- 12. has an atomic mass of 285
- 14. a pure substance; consists of only one type of atom
- 16. the lightest noble gas
- 17. dissolves the solute
- 19. a substance formed as a result of a chemical reaction
- 20. consists of two or more substances that are NOT chemically bonded
- 21. the study of matter and its properties
- 23. found in the nucleus
- 25. solute dissolved in a solvent
- 27. comes from the Greek word for "indivisible"
- 28. pH lower than 7
- 29. two or more elements combined chemically
- 30. responsible for an atom's chemical properties
Down
- 1. an electrically neutral particle made of two or more atoms joined by chemical bonds
- 2. an element's atomic number indicates how many of these are in each atom
- 4. the lightest element whose number of protons is divisible by 2, 3, and 5
- 6. lithium, potassium, and francium are all...
- 8. a solution where the solvent is water
- 9. matter is not created or destroyed during any chemical or physical change
- 11. has a negative charge
- 13. has a consistent chemical composition
- 15. chemical bonds are formed and/or broken
- 18. electrons are shared
- 19. scale to measure acidity and alkalinity
- 22. a substance that enters into a chemical reaction
- 24. the lightest element
- 25. dissolved by the solvent
- 26. ions are held together by the attraction between their opposite electrical charges