Chemistry Review Crossword Puzzle

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