Chapter 2 Crossword Puzzle

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Across
  1. 3. When a plant converts carbon dioxide into oxygen
  2. 12. Otherwise known as "bonding capacity"
  3. 13. The unit of measurement used for neutron mass and proton mass
  4. 14. Atoms that have either a positive or negative charge
  5. 15. The name for a positively charged ion
  6. 17. The final molecules of a chemical reaction
  7. 18. An atom's attraction for the electrons of a covalent bond
  8. 20. Starting molecules of a chemical reaction
  9. 23. The name for a negatively charged ion
  10. 24. Anything that takes up space and has mass
  11. 25. A compound formed by ionic bonds
Down
  1. 1. Two atomic forms of an element that differ in number of neutrons
  2. 2. Represents the average kinetic energy of molecules
  3. 4. The clinging of one substance to another
  4. 5. Subatomic particles that have a positive charge
  5. 6. Two or more atoms held together by covalent bonds
  6. 7. Fill in the blank: A _____ bond forms when a hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom
  7. 8. The amount of heat required to raise the temperature of one gram of water by one degree celsius
  8. 9. Fill in the Blank: Chemical _____ is reached when the forward and reverse reaction rates are equal.
  9. 10. Substance that cannot be broken
  10. 11. Substance consisting of two or more elements in a fixed ratio
  11. 16. Subatomic particles that have no electrical charge
  12. 19. Subatomic particles that have a negative charge
  13. 21. Smallest unit of matter that still retains the properties of an element
  14. 22. the capacity to cause change