Emily Puzzo

Edit Answers
123456789101112131415161718192021222324
Across
  1. 4. positive ion
  2. 7. the production of chemical compounds by reaction from simpler materials
  3. 12. found on the periodic table
  4. 14. 1s2 2s2 2p6 3s2
  5. 15. two nonmetals
  6. 17. H2 + O = H2O
  7. 19. subtance at the beginning of reaction
  8. 21. negative ion
  9. 22. rapid chemical combination of a substance with oxygen involving the production of heat and light
  10. 23. arrow
  11. 24. produced at the end of the reaction
Down
  1. 1. s
  2. 2. each side has the same amount of elements
  3. 3. l
  4. 4. CH4 + 2O2 ____ CO2 + 2H2O
  5. 5. g
  6. 6. single element gets replaced in compound
  7. 8. chemical reaction where 2 compounds react and the cation and anion of the 2 reactants switch places
  8. 9. 2 or more atoms bonded together
  9. 10. the symbol (aq) indicates a substance is dissolved in water
  10. 11. mass that doesnt get destroyed nor created
  11. 13. elements having 8 electrons
  12. 15. shows how many of each molecule there is
  13. 16. a single compound break down into 2 or more simpler substances
  14. 17. two atoms bonded together
  15. 18. metal and nonmetal
  16. 20. number written on bottom right of element