Chemistry

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Across
  1. 3. Matter can enter and leave
  2. 6. Atom that has an electric charge
  3. 7. Electrons are unequally shared
  4. 8. Positively charged atom that loses electrons
  5. 10. A reaction where one element replaces another
  6. 11. Matter is not created nor destroyed
  7. 15. Negatively charged atom that gains electrons
  8. 16. Reaction where energy is being released
  9. 17. Compound made by combining an alcohol and organic acid
  10. 18. Different materials at the end of a reaction, right side of equation
  11. 19. Reaction where energy is being absorbed
Down
  1. 1. Force that holds two atoms together
  2. 2. A reaction that breaks down compounds into simpler products
  3. 4. A reaction where one element replaces another
  4. 5. Matter cannot enter or leave
  5. 9. Polymers formed from amino acids
  6. 12. Highest energy level in an atom
  7. 13. Electrons are equally shared
  8. 14. A reaction when two or more substances combine to make a complex substance
  9. 20. Materials at the beginning of a reaction, left side of equation