Chem Crossword

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Across
  1. 1. the metric unit of temperature
  2. 5. CH₄+2O₂→CO₂+H₂O
  3. 8. the closeness of a measurement to true value of what is being measured
  4. 9. the ability of an atom to attractive to electron whenthe atom is in a compound
  5. 13. 2K+H₂O→KOH+H₂
  6. 16. group 7A
  7. 17. the base unit of volume in SI
  8. 19. the smallest unit
  9. 23. matter that has a uniform and definite composition
  10. 27. 2Mg+O₂→2MgO
  11. 28. a quality or condition of a substance that can be observed or measured without changing the substances composition
  12. 29. ion with a positive charge
  13. 31. Density*Molar Volume
  14. 34. K₂CO₃+BaCl₂→2KCl+BaCO₃
  15. 35. a singe atom with a positive or negative charge
  16. 36. a compound composed of 2 elements
  17. 38. all the digits that can be known percisely in a measurement
  18. 39. examples; Sulfate, Nitrate, & Nitrite
  19. 40. The amount of matter an object contains
  20. 42. group 1B through 8B
  21. 44. compounds with positive and negative ions
  22. 48. group 1A
  23. 49. Mass/Volume
  24. 50. a measurement of how close a series of measurements are to one another
Down
  1. 2. the electrostatic charge that binds oppositely charged ions together
  2. 3. examples: Oxygen, Chlorine, & Bromine
  3. 4. a coumpound that produces hydroxide ions in a solution
  4. 6. the base unit of weight in SI
  5. 7. prefix for 3
  6. 10. group 8A
  7. 11. group 2A
  8. 12. A measure of a space occupied by a sample of matter
  9. 14. amount of a substance that contains 6.02x10^23
  10. 15. Actual Yield/Theoretical yield*100
  11. 18. the chemical formula of a molecular compound
  12. 20. a bond formed by the sharing of electrons between atoms
  13. 21. the temperature scale in which the freesing point of water is 273
  14. 22. the base unit of length in SI
  15. 24. a group of atoms that has a positive or negative charge
  16. 25. electrons on the outer shell
  17. 26. prefix for 2
  18. 30. prefix for 6
  19. 31. prefix for 1
  20. 32. ion with a negative charge
  21. 33. a form of matter that has a definite shape or volume
  22. 37. an expression that indicates the number and type of atom present in the smallest representation of a unit of a substance
  23. 41. a metric unit equal to the mass of 1cm cubed of water at 4 degrees Celsius
  24. 43. the smallest particle of a element that retains its identity in a chemical reaction
  25. 45. 2HgO→2Hg+O₂
  26. 46. prefix for 4
  27. 47. a form of matter that takes the shape and volume of its container
  28. 48. a compound that produces hydrogen ions in a solution