The Pure Awesomeness of Chemical Reactions

1234567891011121314151617181920
Across
  1. 2. what you call the numbers that go above an element to show its charge
  2. 3. we do these to equations so matter is neither gained nor lost
  3. 4. numbers below an element symbol that tells you how many atoms you have. For example, the 2 in H2O.
  4. 5. this type of chemical reaction would be hot to the touch
  5. 9. numbers that go in front of a molecule to tell you how many molecules you have
  6. 10. what number needs to go in front of the Sb to balance this equation _?_Sb + 3O2 → Sb4O6
  7. 14. these are the new elements or compounds formed *after* the chemical reaction
  8. 16. this states that matter is never destroyed or created
  9. 19. shown by the symbol (l) in a chemical equation
  10. 20. these two letters in a chemical equation show that something is dissolved in water
Down
  1. 1. when you see these, a new gas is probably being formed, and it’s evidence of a chemical reaction
  2. 4. the coolest class subject in the universe, along with math
  3. 6. what number needs to go in front of the H2 to balance this equation N2 + _?_H2  2NH3
  4. 7. this type of chemical reaction would be cold to the touch
  5. 8. The *starting* materials in a reaction.
  6. 11. when there’s a change in this, such as red to blue, it’s evidence of a chemical reaction
  7. 12. what number needs to go in front of the HgO to balance this equation _?_HgO  2Hg + O2
  8. 13. shown by the symbol (g) in a chemical equation
  9. 15. when there’s a change in this, such as hot to cold, it’s evidence of a chemical reaction
  10. 17. this is the name or Mr. Burnham’s Chihuahua puppy dog, also one of the compounds that you use to make music records
  11. 18. shown by the symbol (s) in a chemical equation