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AP Chem VSEPR shapes and bond angles key terms

Study the VSEPR shapes, bond angles, and key terms that are essential for AP Chemistry. Prepare for multiple-choice questions and free-response questions with this comprehensive flashcard set.

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What shape does a molecule with 2 bonding pairs have?

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Linear - 180° bond angle.

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Quiz(32 questions)

Question 1 of 32

1. What is the shape of a molecule with 2 bonding pairs and no lone pairs?

Terms in this Study Set(32)

Basic VSEPR Shapes(16)

What shape does a molecule with 2 bonding pairs have?

Linear - 180° bond angle.

Shape of CH4 (methane)?

Tetrahedral - bond angles approximately 109.5°.

True or False: A trigonal planar shape has 4 electron groups.

False - It has 3 electron groups, 120° bond angles.

Fill in the blank: Molecules with 4 bonding pairs are __________.

Tetrahedral.

Which shape has 2 bonding pairs and 1 lone pair?

Bent - bond angle less than 120°.

How many bond angles are in a tetrahedral molecule?

Four bond angles, approximately 109.5° each.

What shape does SF6 (sulfur hexafluoride) have?

Octahedral - 90° bond angles.

Comparison: trigonal bipyramidal vs. octahedral.

Trigonal bipyramidal has 5 bonding pairs, octahedral has 6.

What is the shape of a molecule with 3 bonding pairs and 1 lone pair?

Trigonal pyramidal - bond angles approximately 107°.

True or False: A square planar shape has 4 bonding pairs and 2 lone pairs.

True - Bond angles are 90°.

Identify the shape of a molecule with 5 bonding groups and no lone pairs.

Trigonal bipyramidal - 120° and 90° bond angles.

What is the VSEPR shape of H2O?

Bent - bond angle approximately 104.5°.

Cause → Effect: 2 lone pairs on a central atom lead to __________.

A decrease in bond angles.

What is the bond angle in a linear shaped molecule?

180°.

Fill in the blank: Molecules with 3 bonding pairs have a __________ shape.

Trigonal planar.

How does a lone pair affect bond angles?

It repels more strongly, reducing bond angles.

Bond Angles and Hybridization(16)

What is the bond angle in a tetrahedral shape?

Approximately 109.5 degrees.

Fill in the blank: The hybridization of a trigonal planar molecule is ___.

sp².

True or False: A linear molecule has a bond angle of 120 degrees.

False. Linear molecules have a bond angle of 180 degrees.

What is the bond angle for a trigonal bipyramidal shape?

120 degrees in the equatorial positions and 90 degrees in the axial positions.

Compare sp and sp² hybridization.

sp: linear shape, 180 degrees; sp²: trigonal planar, 120 degrees.

What type of hybridization does an octahedral molecule have?

sp³d².

Cause → Effect: A molecule with four bonded pairs and no lone pairs has what shape?

Tetrahedral shape with bond angles of approximately 109.5 degrees.

What bond angle is associated with bent molecular geometry?

Approximately 104.5 degrees.

Fill in the blank: The hybridization of a molecule with a square planar shape is ___.

d²sp³.

True or False: In a trigonal bipyramidal shape, all bond angles are equal.

False. There are two different bond angles: 120 and 90 degrees.

What is the bond angle in a linear molecule?

180 degrees.

Compare sp³ and sp³d hybridization.

sp³: tetrahedral, 109.5 degrees; sp³d: trigonal bipyramidal, 90 & 120 degrees.

What hybridization corresponds to a molecule with a tetrahedral geometry?

sp³.

What bond angle is typical for a molecule with a seesaw shape?

Approximately 120 degrees and 90 degrees.

Fill in the blank: A trigonal pyramidal molecule has bond angles of approximately ___.

107 degrees.

What is the bond angle for a square planar shape?

Approximately 90 degrees.

Questions in this Study Set(32)

1. What is the shape of a molecule with 2 bonding pairs and no lone pairs?

A.Linear

B.Bent

C.Trigonal planar

D.Tetrahedral

2. What is the bond angle associated with a tetrahedral molecular shape?

A.109.5 degrees

B.120 degrees

C.90 degrees

D.180 degrees

3. Which shape corresponds to a molecule with 3 bonding pairs and no lone pairs?

A.Trigonal planar

B.Tetrahedral

C.Bent

D.Octahedral

4. Fill in the blank: The hybridization of a molecule with a linear shape is ___.

A.sp

B.sp²

C.sp³

D.d²sp³

5. True or False: A molecule with 5 bonding pairs exhibits a square planar shape.

A.True

B.False

C.Depends on lone pairs

D.Not enough information

6. True or False: A trigonal planar molecule has bond angles of 90 degrees.

A.True

B.False

C.Depends on the molecule

D.Only in certain conditions

7. What is the bond angle of a trigonal pyramidal molecule?

A.104.5°

B.120°

C.90°

D.109.5°

8. What bond angle is found in a trigonal bipyramidal molecule?

A.120 degrees and 90 degrees

B.180 degrees

C.109.5 degrees

D.104.5 degrees

9. Fill in the blank: A molecule with 4 bonding pairs and no lone pairs is __________.

A.Tetrahedral

B.Trigonal planar

C.Linear

D.Bent

10. Which hybridization corresponds to a molecule with a bent geometry?

A.sp

B.sp²

C.sp³

D.sp³d

11. Which shape has 2 bonding pairs and 2 lone pairs?

A.Bent

B.Linear

C.Trigonal pyramidal

D.Square planar

12. Cause → Effect: A molecule with four bonded pairs and one lone pair has what shape?

A.Trigonal bipyramidal

B.Tetrahedral

C.Trigonal pyramidal

D.Octahedral

13. Identify the shape of a molecule with 4 bonding groups and 1 lone pair.

A.Tetrahedral

B.Trigonal bipyramidal

C.Trigonal pyramidal

D.Bent

14. What is the bond angle in a square planar molecule?

A.90 degrees

B.120 degrees

C.180 degrees

D.109.5 degrees

15. What is the bond angle in an octahedral shaped molecule?

A.120°

B.90°

C.180°

D.109.5°

16. True or False: The hybridization of a molecule with a seesaw shape is sp³d.

A.True

B.False

C.Only in specific cases

D.Depends on the atoms involved

17. Which of the following is NOT a VSEPR shape?

A.Trigonal bipyramidal

B.Square planar

C.Pentagonal

D.Tetrahedral

18. What bond angle is typical for a molecule with trigonal pyramidal geometry?

A.120 degrees

B.90 degrees

C.107 degrees

D.180 degrees

19. What effect do lone pairs have on bond angles in a molecule?

A.Increase bond angles

B.Have no effect

C.Reduce bond angles

D.Double bond angles

20. What hybridization corresponds to a molecule with an octahedral geometry?

A.sp

B.sp³d

C.sp³d²

D.sp²

21. What is the shape of a molecule with 5 bonding pairs and no lone pairs?

A.Trigonal planar

B.Trigonal bipyramidal

C.Octahedral

D.Tetrahedral

22. Fill in the blank: A molecule with a bond angle of 180 degrees and two bonded pairs has the hybridization ___.

A.sp

B.sp²

C.sp³

D.d²sp³

23. True or False: Molecules with one bond and three lone pairs are trigonal pyramidal.

A.True

B.False

C.Depends on the atom

D.Not applicable

24. What is the bond angle for a molecule with a trigonal planar shape?

A.120 degrees

B.90 degrees

C.109.5 degrees

D.180 degrees

25. What is the bond angle in a linear molecular shape?

A.180°

B.90°

C.120°

D.109.5°

26. Which of the following does NOT have a bond angle of 90 degrees?

A.Square planar

B.Trigonal bipyramidal

C.Linear

D.Octahedral

27. Fill in the blank: The shape of a molecule with 3 bonding pairs and 1 lone pair is __________.

A.Trigonal pyramidal

B.Bent

C.Trigonal planar

D.Square planar

28. What bond angle is associated with a triangular molecule?

A.120 degrees

B.90 degrees

C.180 degrees

D.104.5 degrees

29. What is the shape of a molecule with 2 bonding pairs and 1 lone pair?

A.Bent

B.Linear

C.Trigonal planar

D.Tetrahedral

30. Compare the bond angles of sp and sp² hybridization.

A.sp: 180 degrees, sp²: 120 degrees

B.sp: 120 degrees, sp²: 180 degrees

C.sp: 90 degrees, sp²: 109.5 degrees

D.sp: 104.5 degrees, sp²: 90 degrees

31. What is the shape of a molecule with 4 bonding pairs and 2 lone pairs?

A.Square planar

B.Trigonal pyramidal

C.Octahedral

D.Bent

32. What is the bond angle in a seesaw molecular shape?

A.Approximately 120 degrees and 90 degrees

B.Approximately 109.5 degrees

C.Approximately 104.5 degrees

D.Approximately 180 degrees

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AP Chem VSEPR shapes and bond angles key terms

Quiz(32 questions)

Terms in this Study Set(32)

Basic VSEPR Shapes(16)

Bond Angles and Hybridization(16)

Questions in this Study Set(32)

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