Chemical Reactions

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Across
  1. 1. In a chemical equation a (g) means
  2. 5. A reaction that gives off heat
  3. 6. An indicator that chemical reaction has taken place (clear + clear = purple)
  4. 10. 1 _____ of any substance has 6.022x10^23
  5. 11. AB + CD --> AD + CB
  6. 12. A + O2 --> AO + H2O
  7. 14. AB --> A + B
  8. 17. A solid that forms out of solution
  9. 18. the type of bond that exists between two nonmentals
  10. 19. Whole number used to balance a chemical equation
  11. 21. A reaction that absorbs heat
  12. 22. In a chemical equation an (s) means
Down
  1. 2. the name given to the number 6.022x10^23
  2. 3. replacement A + BC --> B + AC
  3. 4. Substances present at the initiation of a chemical reaction
  4. 6. A + B --> AB
  5. 7. In a chemical equation an (l) means
  6. 8. stands for aqueous ( which means dissolved in water)
  7. 9. A reaction in which a single element replaces another in a compound
  8. 13. the unit for heat
  9. 15. the type of bond that exists between cations and anions
  10. 16. If a chemical equation has the same number of atoms on the left side and right, the equation is said to be ______
  11. 20. The Right side of a chemical equation