Science

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Across
  1. 5. the final product of a chemical reaction
  2. 7. causes a reaction to start
  3. 9. on the left side of the chemical equation H20 + K --> 2HOK is an example of what kind of equation?
  4. 11. CO + 2H --> COH2
  5. 14. The number 2 in 2Bi is an example of what?
  6. 16. can sometimes be left over or a by product of a chemical recation
  7. 17. energy must stay consistent between the reactant and products side of an equation
  8. 19. mass must be conserved in a chemical reaction
  9. 20. The number 8 in H80 is an example of what?
Down
  1. 1. H3 + Bi3 ---> 3HBi
  2. 2. H and C join together and form HC
  3. 3. a match being struck
  4. 4. delays and/or slows down a reaction taking place
  5. 6. this is needed for a reaction to start, but it isnt a catalyst
  6. 8. H20 and C reacting
  7. 10. yields a reaction
  8. 12. seperates the chemical symbols in a chemical equation
  9. 13. a cookie being baked
  10. 15. is needed for a chemical reaction to take place
  11. 18. can be a by product of a chemical reaction, the more common of the two types