Chemistry Crossword Puzzle

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Across
  1. 4. measures reactant and product masses before and after chemical reactions.
  2. 6. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist.
  3. 10. ions are formed by gain or loss of an electron formation.
  4. 13. the quality, condition, or fact of being exact and accurate.
  5. 16. donates one proton per molecule, such as HCL and HCLO4.
  6. 17. a substance that increases concentration of OH- ions in solution.
  7. 19. has the highest ionization energy.
  8. 20. a substance that increases the concentration of hydrogen ions in an aqueous solution.
Down
  1. 1. donates more than one proton per molecule, such as H3PO4.
  2. 2. created the plum pudding model.
  3. 3. forces that hold molecules of a covalent compound.
  4. 5. the measure of the average kinetic energy of the particles in a sample of matter.
  5. 7. the study of how heat is converted to and from other forms of energy and how it affects matter.
  6. 8. the total amount of energy; movement.
  7. 9. the change in heat of the products from the reactants.
  8. 11. the quality or state of being correct or precise.
  9. 12. positively changed nucleus with electrons orbiting the nucleus.
  10. 14. how strongly an atom attracts electrons .
  11. 15. electrons orbit the nucleus in specific orbitals or shells of specific size and location.
  12. 18. a substance that speeds up a chemical reaction without itself undergoing any chemical change.