Chemistry Crossword Puzzle

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Across
  1. 4. lowest temperature that a liquid will ignite
  2. 5. metals/the first group on the periodic table is the __________
  3. 7. displacement/the reaction when two different molecules switch atoms
  4. 8. that change colour depending on if it is exposed to a acid or base
  5. 9. + O2 → H2O + CO2
  6. 11. reaction in which molecules break down
  7. 12. bond/the bond formed when two atoms share electrons
  8. 13. compound/compounds formed with no metals
  9. 16. ability for a material to be flattened or rolled
  10. 18. compound/compounds that have both a metal atom and a nonmetal atom
Down
  1. 1. reaction that occurs when two different atoms join together to make a molecule
  2. 2. acid/HNO3
  3. 3. ability to be dissolved into a liquid
  4. 6. atom that has either gained or lost an electron
  5. 7. naturally found in pairs
  6. 10. gases/the most stable element group on the periodic table is the _______
  7. 11. ability for a material to be stretched
  8. 14. order for neutralization to occur, a salt and ____ must be made in a reaction
  9. 15. shell/the outermost shell in an atom
  10. 17. acid