Chemistry So Far

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Across
  1. 4. Used to measure pH
  2. 6. ______ Decay: A type of nuclear reaction emitting a particle from the nucleus
  3. 7. ______ Electrons: Electrons in an atom's outermost shell
  4. 10. A product of a neutralisation reaction
  5. 11. Atoms of an element with different numbers of neutrons
  6. 12. Number of protons in an atom (2 words)
  7. 13. Paint stripper, oven cleaner, and cement are an example of this (2 words)
  8. 16. A reaction that absorbs energy from its surroundings
  9. 19. The pH of lemon juice
  10. 20. The name for an ion of Chlorine
  11. 22. Bond between two oppositely charged ions
Down
  1. 1. This type of combustion reaction produces carbon monoxide
  2. 2. _____ Gas: Combustion requires this
  3. 3. This type of reaction is the breakdown of a metal by oxygen
  4. 5. An unstable isotope of an element
  5. 8. Releases OH- ions in water
  6. 9. Respiration is this type of reaction
  7. 14. Negatively charged particle
  8. 15. 4NH3 + __O2 → 4NO + 6H2O
  9. 17. A solution with a pH of 7
  10. 18. The substances you start with in a chemical reaction
  11. 21. Releases H+ ions in water