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Chapter 21, 22, & 23

Chapter 21, 22, & 23. Review Day!. What kind of bond would you expect between 2 Oxygen atoms?. nonpolar covalent ionic metallic polar covalent. What kind of bond would you expect between 2 Oxygen atoms?. nonpolar covalent ionic metallic polar covalent.

hedwig-buckley
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Chapter 21, 22, & 23

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  1. Chapter 21, 22, & 23 Review Day!

  2. What kind of bond would you expect between 2 Oxygen atoms? • nonpolar covalent • ionic • metallic • polar covalent

  3. What kind of bond would you expect between 2 Oxygen atoms? • nonpolar covalent • ionic • metallic • polar covalent

  4. Which set of coeffients balance the following chemical equations? Na + Cl2 NaCl • 2,1,1 • 1,2,1 • 2,3,1 • 2,1,2

  5. Which set of coeffients balance the following chemical equations? Na + Cl2 NaCl • 2,1,1 • 1,2,1 • 2,3,1 • 2,1,2

  6. How many electrons are shared in a double covalent bond? • 2 • 6 • 1 • 4

  7. How many electrons are shared in a double covalent bond? • 2 • 6 • 1 • 4

  8. What type of chemical bond would you expect between a calcium and chlorine atom? • Metallic • Ionic • Polar covalent • Nonpolar covalent

  9. What type of chemical bond would you expect between a calcium and chlorine atom? • Metallic • Ionic • Polar covalent • Nonpolar covalent

  10. The alkali metals tend to form 1+ while the alkali-earth metals tend to form 2+ because • The charges of these ions corresponds to the number of valence electrons that may be lost • The ion an atom forms is always equal to the group number • This is a random occurrence • Alkali metals are less massive

  11. The alkali metals tend to from 1+ while the alkali-earth metals tend to from 2+ because • The charges of these ions corresponds to the number of valence electrons that may be lost • The ion an atom forms is always equal to the group number • This is a random occurrence • Alkali metals are less massive

  12. If Aluminum ions have a 3+ charge and oxygen ions have a 2- charge, the compound aluminum oxide is • Al6O6 • Al4O3 • Al3O2 • Al2O3

  13. If gallium ions have a 3+ charge and sulfur ions have a 2- charge, the compound Aluminum oxide is • Al6O6 • Al4O3 • Al3O2 • Al2O3

  14. If calcium has a 2+ charge and oxygen has a 2- charge, what is the formula for calcium oxide? • Ca4O2 • CaO • Ca2O2 • Ca2O4

  15. If magnesium has a 2+ charge and oxygen has a 2- charge, what is the formula for calcium oxide? • Ca4O2 • CaO • Ca2O2 • Ca2O4

  16. The greater the difference in electro negativity between two covalently bonded atoms, • The closer together the atoms are located on the periodic table • The greater the polarity • The smaller the polarity • Two of the above are correct

  17. The greater the difference in electro negativity between two covalently bonded atoms, • The closer together the atoms are located on the periodic table • The greater the polarity • The smaller the polarity • Two of the above are correct

  18. Which set of coeffients balance the following chemical equation? C3H8 + O2 CO2 + H2O • 1,3,3,1 • 3,5,3,4 • 1,5,3,4 • 1,5,3,1

  19. Which set of coeffients balance the following chemical equation? C3H8 + O2 CO2 + H2O • 1,3,3,1 • 3,5,3,4 • 1,5,3,4 • 1,5,3,1

  20. The images below show particles in three phases. What are they from left to right? • Gas, liquid, solid • Solid, liquid, gas • Solid, gas, liquid • Liquid, gas, solid

  21. The images below show particles in three phases. What are they from left to right? • Gas, liquid, solid • Solid, liquid, gas • Solid, gas, liquid • Liquid, gas, solid

  22. Gases are so much easier to squeeze into smaller volumes than liquids or solids because • They are always warmer than liquids or solids • There is so much space in between the submicroscopic particles • They are so much lighter • Their atoms or molecules are already moving at high speeds

  23. Gases are so much easier to squeeze into smaller volumes than liquids or solids because • They are always warmer than liquids or solids • There is so much space in between the submicroscopic particles • They are so much lighter • Their atoms or molecules are already moving at high speeds

  24. The phase in which atoms and molecules no longer move is • Gas • Liquid • Solid • none

  25. The phase in which atoms and molecules no longer move is • Gas • Liquid • Solid • none

  26. When two different elements combine to form a compound, the resulting properties of the compound are • Predictable based upon the nature of the combining elements • Not necessarily anything like those of the elements • Most like the element given in the greatest amount • About the average of the properties of the two elements

  27. When two different elements combine to form a compound, the resulting properties of the compound are • Predictable based upon the nature of the combining elements • Not necessarily anything like those of the elements • Most like the element given in the greatest amount • About the average of the properties of the two elements

  28. What type of chemical bond would you expect between 2 neon atoms? • Covalent • Ionic • Metallic • None of the above

  29. What type of chemical bond would you expect between 2 neon atoms? • Covalent • Ionic • Metallic • None of the above

  30. Which of the set of coefficients balance the following equation? BaCl2+ NaOH  NaCl + Ba(OH)2 • 1,2,1,1 • 1,2,2,2 • 1,2,2,1 • 2,1,2,1

  31. Which of the set of coefficients balance the following equation? BaCl2+ NaOH  NaCl + Ba(OH)2 • 1,2,1,1 • 1,2,2,2 • 1,2,2,1 • 2,1,2,1

  32. Which of the below shows a mixture? A B C D • A • B • C • D

  33. Which of the below shows a mixture? A B C D • A • B • C • D

  34. Which set of coefficients balance the following chemical equation? CaBr2 + Na3P Ca3P2 + NaBr • 3,2,1,6 • 3,2,2,6 • 3,1,2,6 • 3,3,1,6

  35. Which set of coefficients balance the following chemical equation? CaBr2 + Na3P Ca3P2 + NaBr • 3,2,1,6 • 3,2,2,6 • 3,1,2,6 • 3,3,1,6

  36. Which set of coefficients balance the following chemical equation? NaF  Na + F2 • 2,1,2 • 2,2,1 • 1,2,2 • 1,2,1

  37. Which set of coefficients balance the following chemical equation? NaF  Na + F2 • 2,1,2 • 2,2,1 • 1,2,2 • 1,2,1

  38. If Na is +1 and CrO4 is -2, the compound’s formula is • NaCrO4 • Na2CrO4 • Na(CrO4)2 • Na2(CrO4)2

  39. If Na is +1 and CrO4 is -2, the compound’s formula is • NaCrO4 • Na2CrO4 • Na(CrO4)2 • Na2(CrO4)2

  40. How does a solid phase differ from a liquid phase on the molecular level? • The molecules of a solid are always more compact • The molecules of a solid are fixed, while the molecules of a liquid are mobile • There are molecular attractions in the solid phase but not to the liquid phase • Solids have crystalline structure while liquids are amorphous

  41. How does a solid phase differ from a liquid phase on the molecular level? • The molecules of a solid are always more compact • The molecules of a solid are fixed, while the molecules of a liquid are mobile • The are molecular attractions in the solid phase but not to the liquid phase • Solids have crystalline structure while liquids are amorphous

  42. What elements tend to form ionic bonds? • Those found in the upper right hand side of the periodic table • Metallic elements • Elements found on opposite sides of the periodic table • Any two elements of the same phase can form an ionic compound

  43. What elements tend to form ionic bonds? • Those found in the upper right hand side of the periodic table • Metallic elements • Elements found on opposite sides of the periodic table • Any two elements of the same phase can form an ionic compound

  44. Which set of coefficients balance the following chemical equation? Li3PO4 Li + P + O2 • 1,3,2,1 • 1,3,2,2 • 1,2,4,4 • 1,3,1,2

  45. Which set of coefficients balance the following chemical equation? Li3PO4 Li + P + O2 • 1,3,2,1 • 1,3,2,2 • 1,2,4,4 • 1,3,1,2

  46. During a chemical reaction • Old atoms disappear to be replaced by new ones • Old atoms transform into new ones • Old atoms stick around merely switching partners • None of the above

  47. During a chemical reaction • Old atoms disappear to be replaced by new ones • Old atoms transform into new ones • Old atoms stick around merely switching partners • None of the above

  48. What type of chemical bond would you expect between a Carbon and an Oxygen? • Polar covalent • Nonpolar covalent • Metallic • Ionic

  49. What type of chemical bond would you expect between a Carbon and an Oxygen? • Polar covalent • Nonpolar covalent • Metallic • Ionic

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