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- 1. Multiple Choice
What is the correct Lewis Dot Structure for ammonia NH3
- 2. Multiple ChoiceWhich of the following is the correct Lewis dot structure for the molecule fluorine (F2)?ABCD
- 3. Multiple Choice
Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?
H
Li
He
B
C
- 4. Multiple Choice
Which of the following is the correct structure for SH6?
A
B
C
- 5. Multiple Choice
How many valence electrons does Hydrogen Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
- 6. Multiple Choice
How many valence electrons does Nitrogen Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
- 7. Multiple ChoiceHow many electrons should Carbon have around its Lewis dot model?1345
- 8. Multiple ChoiceThis is a correct dot diagram for oxygen (O)truefalse
- 9. Multiple ChoiceThis could be the dot diagram ofMgClCO
- 10. Multiple ChoiceWhat elements generally make an ionic bond?metal and nonmetal2 or more nonmetalsmetalnone of the above
- 11. Multiple ChoiceWhat elements generally make a covalent bond?metal and nonmetal2 or more nonmetalsmetalnone of the above
- 12. Multiple ChoiceIn chemical compounds, covalent bonds form whenthe electronegativity difference between two atoms is very large.electrons are completely transferred between two metals.pairs of electrons are shared between two nonmetal atoms.two nonmetal atoms are attracted to each other by opposite charges.
- 13. Multiple ChoiceAn ionic bond forms whenValence electrons are shareda sea of mobile electrons surround the cationsvalence electrons are transferred between atomsnone of the above
- 14. Multiple ChoicePredict the bond that will form between Be and F.IonicCovalent
- 15. Multiple ChoicePredict the bond that will form between Se and Cl.IonicCovalent
- 16. Multiple ChoicePredict the bond that will form between Sr and S.IonicCovalent
- 17. Multiple ChoiceWhich statement explains why a molecule of CH4 is nonpolar?The bonds between the atoms in a CH4 molecule are polarThe bonds between the atoms in a CH4 molecule are ionicThe geometric shape of a CH4 molecule distributes the charges symmetricallyThe geometric shape of a CH4 molecule distributes the charges asymmetrically
- 18. Multiple ChoiceTrue or false:
Ionic compounds have high melting points.truefalse - 19. Multiple ChoiceWhich types of compounds dissolve easily in water?Polar and NonpolarPolar and IonicNonpolar and IonicCovalent and Nonpolar
- 20. Multiple ChoiceAlloys include a "sea" of free moving _______.electronsatomsmoleculesprotons
- 21. Multiple ChoiceBonds that form between two metals are called ______________ bonds.ioniccovalentmetallicpervasive
- 22. Multiple ChoiceWhich type of bond creates a "pool" of electrons between atoms?Ionic BondsCovalent BondsMetallic BondsSaving Bonds
- 23. Multiple Choice
Two elements with high electronegativity will make what kind of bond?
Ionic
Polar Covalent
Metallic
Non-Polar Covalent
- 24. Multiple Choice
What type of bond forms when there is a large difference in electronegativity?
Ionic
Polar Covalent
Metallic
Non-Polar Covalent
- 25. Multiple Choice
Molecules that are symmetrical are usually _______.
Polar
Non-Polar
- 26. Multiple Choice
Which of these is most likely to be polar?
CO2
SO2
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