9F

12345678910111213
Across
  1. 2. made from two or more materials
  2. 3. energy being absorbed in the reaction
  3. 4. can not be created or destroyed but can only be transferred
  4. 5. a reaction that only works when heat is provided
  5. 6. found in their native state
  6. 8. K on the periodic table
  7. 11. require oxygen and gunpowder for it to react
  8. 12. Cl on the periodic table
  9. 13. ore is mixed with " " then dropped on the top of the blast furnace
Down
  1. 1. energy being transferred to the surroundings
  2. 4. is an electrical current passed through molten aluminum and oxygen
  3. 5. Ca on the periodic table
  4. 7. made from hydrogen and carbon
  5. 9. tiny particles that don't touch
  6. 10. a type of metal that turns greenish when oxidized