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Molecular Shapes

Molecular Shapes. Quiz Review. Admit Slip. Name as many molecular shapes as you can. The Rules . Split into groups of 3. Rotate who answers each question. Each group will get points for participation. All answers should be written down and not shouted out.

jonah-gibbs
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Molecular Shapes

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  1. Molecular Shapes Quiz Review

  2. Admit Slip Name as many molecular shapes as you can.

  3. The Rules Split into groups of 3. Rotate who answers each question. Each group will get points for participation. All answers should be written down and not shouted out. The winning group will receive 2 homework points and candy during the quiz Thursday!

  4. 200 What are the names of the regions around atoms where the electrons reside in bonds or lone pairs?

  5. 400 Why aren’t molecules flat and with all bonding angles at 90º?

  6. 800 Draw the Lewis Dot structure of H2O. a) How many electron domains does oxygen have b) How many electron domains does each hydrogen have?

  7. 200 Most of the molecular shapes we’ve learned have an underlying tetrahedral shape because the central atom has _____ electron domains.

  8. 200 Trigonal planar, on the other hand, is a shape caused when the central atom has ____ electron domains.

  9. 200 The central atom in the linear molecule CO2 has only ____ electron domains.

  10. 400 The molecule H2O has which shape? a) tetrahedral b) pyramidal c) bent d) linear e) trigonal planar

  11. 400 The molecule methane, CH4 has which shape? a) tetrahedral b) pyramidal c) bent d) linear e) trigonal planar

  12. 400 The atom neon, Ne has which shape? a) tetrahedral b) pyramidal c) bent d) point e) linear

  13. 400 The molecule NH3 has which shape? a) tetrahedral b) pyramidal c) bent d) linear e) trigonal planar

  14. 600 Draw the following molecules as Lewis Dot structures and then identify the shape. CF4

  15. 600 Draw the following molecules as Lewis Dot structures and then identify the shape. H2S

  16. 600 Draw the following molecules as Lewis Dot structures and then identify the shape. CH2Br2

  17. 600 Draw the following molecules as Lewis Dot structures and then identify the shape. CH2O

  18. 600 Draw the following molecules as Lewis Dot structures and then identify the shape. CO2

  19. 800 Draw the following molecules as Lewis Dot structures and then identify the shape. CH3NH2 Shape on C: Shape on N:

  20. 400 Carbon (C) reacts with bromine (Br) to form carbon tetrabromide (CBr4). a. Draw the Lewis dot structures for carbon (C) and bromine (Br) individually.

  21. 400 b. Draw the Lewis dot structure for carbon tetrabromide (CBr4).

  22. 400 c. Identify the shape of the CBr4 molecule as predicted by valence-shell electron-pair repulsion (VSEPR) theory and explain why CBr4 has this shape.

  23. Final Jeopardy The total amount of points possible is: 8600

  24. Final Jeopardy Draw the Lewis Dot Structure for: CH2S What shape is this molecule and why?

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