Chemistry Review Crossword Puzzle

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Across
  1. 3. _______ energy is also called radiant energy
  2. 5. What's the formation of a positive ion?
  3. 7. ________are in group 17 and are salt formers.
  4. 12. ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
  5. 13. What's the ability to do work and make change possible?
  6. 15. ______ metals are found in group 1.
  7. 17. ________ bonds are made of two nonmetals
  8. 19. What has a definite volume but no definite shape?
  9. 20. What measures the distance?
  10. 22. A _____ reaction is when two or more substances combine.
  11. 23. The _____rule says atoms will combine to have 8 valence electrons.
  12. 26. A ______ reaction is when a single compound breaks down.
  13. 27. A ______ reaction is a chemical reaction in which the products reform the original reactants.
  14. 28. A ________ mixture that cannot easily be separated.
  15. 30. Hydronium is a ______.
  16. 33. A _____ has a definite shape, volume, and melting point.
  17. 35. What is a quantitative description that includes both a number and a unit?
  18. 36. The ______ yield is the amount of a product mathematically possible.
  19. 37. What's the measure of how close a series of measurements are to one another?
  20. 38. What's the tendency of a substance to undergo chemical reaction?
  21. 39. What's in each column?
Down
  1. 1. what is the SI base unit for temperature?
  2. 2. Who's the scientist that compared electrons in an atom to planets in the solar system?
  3. 4. What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
  4. 6. What is a chemical substance of two or more different chemical elements?
  5. 8. What's a substance that cannot be broken down by chemicals?
  6. 9. Hydroxide is a _______.
  7. 10. What are good conductors, shiny, and ductile?
  8. 11. What's the mixing of the particles of 2 substances caused by their random motion?
  9. 14. What are poor conductors, brittle, dull, and gases?
  10. 16. _______ bonds are composed of metals and nonmetals
  11. 18. What's it called for two or more substances that are combined without chemicals?
  12. 21. A ________ mixture that can be separated.
  13. 24. What's it called to go from a solid to a gas?
  14. 25. A small, whole number that appears in front of a formula.
  15. 29. What are properties of metals and nonmetals, solids, and semi-conductors?
  16. 31. What's in each row?
  17. 32. _______ bonds consist of two metals.
  18. 34. a is the symbol for an _____ particle.
  19. 40. What's the formation of a negative ion?