Chem Vocab Review 1

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Across
  1. 3. reaction that involves O2 as a reactant and typically CO2, H2O and heat as products
  2. 5. phase change from solid to gas
  3. 7. 6.02x10^23
  4. 10. row on the Periodic Table
  5. 11. positive particle in an atom
  6. 13. elements and compounds are examples of ___; has a chemical formula
  7. 14. type of reaction in which two ions swap “partners” to form 2 new compounds
  8. 16. system absorbs heat
  9. 17. subatomic particle with no charge
  10. 18. diagram that shows all electrons in an atom or ion on rings
  11. 20. theory that defines an acid as a proton donor
  12. 21. reactant that controls the amount of product that can be produced in a chemical reaction
  13. 23. acid that ionizes completely in solution
  14. 27. type of bond formed between C and H
  15. 28. system releases heat
  16. 29. type of bond formed between Na and Cl
  17. 30. theory that defines a base as producing OH- in water
Down
  1. 1. substance with a pOH less than 7
  2. 2. diagram that shows the valence electrons in an atom or ion
  3. 4. atom of an element with a varying number of neutrons
  4. 6. type of mixture in which parts cannot be distinguished
  5. 8. ratio of actual yield to theoretical yield
  6. 9. most dense phase of matter
  7. 12. ratio of any two parts of a balanced chemical equation; includes coefficient and formula
  8. 15. measure of concentration; ratio of moles of solute to to volume (in L) of solution
  9. 19. shows simplest ratio of atoms in a compound
  10. 22. a measure of the kinetic energy of molecules
  11. 24. ratio of mass to volume
  12. 25. formed when an atom gains or loses electrons
  13. 26. measure of the acidity/basicity of a substance; calculated as -log[H+]