2nd Semester Final Review 2

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Across
  1. 2. Element or compound that cannot be broken down into simpler components and maintain the properties of the original substance
  2. 5. The starting substances in a chemical reaction.
  3. 6. Vertical columns in the periodic table
  4. 7. The energy required to raise the temperature of 1 gram of a substance by 1 degree
  5. 9. ion A group of atoms with a positive or negative charge
  6. 11. The new substances produced by a chemical reaction.
  7. 12. A combination of symbols and subscripts that tells which elements are in a compound and their ratios.
  8. 15. The sum of the kinetic and potential energy of the particles in an object
  9. 16. Energy a moving object has because of its motion
  10. 20. The transfer of energy from a higher temperature to a lower temperature
  11. 21. A chemical reaction in which energy is released.
Down
  1. 1. Compound that has water chemically attached to its ions.
  2. 3. Transfer of thermal energy by collisions of particles (CONTACT)
  3. 4. A neutral particle that forms as a result of electron sharing
  4. 8. Elements are arranged by increasing atomic number and by changes in properties
  5. 10. A positive or a negative number assigned to an element to show its combining ability in a compound
  6. 12. The attraction that forms between atoms when they share electrons
  7. 13. A chemical reaction in which energy is absorbed.
  8. 14. Horizontal columns in the periodic table
  9. 17. The average kinetic energy of the particles of a substance
  10. 18. Transfer of thermal energy in a fluid from one place to another
  11. 19. The force of attraction between opposite charges of the ions in an ionic compound
  12. 22. Transfer of thermal energy by electromagnetic waves