Across
- 4. pH level of neutral substance
- 5. Chemical reaction that releases heat
- 7. Type of bond formed by losing or gaining electrons
- 9. where oxygen is added to a substance
- 11. Chemical substance that speeds up reactions
- 12. Type of ion formed when an atom gains electrons
- 15. number of atoms or ions in one mole of a substance
- 16. group of two or more atoms that are held together by attractive forces known as chemical bon
- 18. any atom or group of atoms that bears one or more charge
- 19. Reaction between an acid and a base
- 20. Substance made of two or more elements chemically combined
Down
- 1. process by which electric current is passed through a substance
- 2. A process where gas turns into liquid
- 3. A process where electrons are gained
- 6. type of bonding in metals
- 8. chemical formula showing the simplest ratio of the elements rather than the total number of atoms in the molecule
- 10. Group elements in group 7
- 13. pH level of a strong acid
- 14. mixture where particles are evenly distributed
- 17. Ion with positive charge