Chemistry Chapter 7 Review

What is the VSEPR theory used to predict?

• Bond Strength
• Polarity
• Molecular Shape
• Electronegativity

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons
• Inner shell electrons
• Mobile Electrons
• Electrons closest to the nucleus

What is the measure of a tetrahedral bond angle?

• 90 Degrees
• 109.5 Degrees
• 120 Degrees
• 180 Degrees

Which molecule would have this shape?

• BF₃
• CH₄
• PCl₅
• CO₂

What molecule could this be? 

• BF₃
• CH₄
• H₂O
• CO₂

Tags

NGSS.HS-PS1-3

The bond angle for a trigonal planar molecule is 

• 90 Degrees
• 109.5 Degrees
• 120 Degrees
• 180 Degrees

Who could this be? 

• CO₂
• NH₃
• H₂S
• CH₄

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What shape would PH₃ have?

• Trigonal Planar

• Trigonal pyramidal

• Bent

• Linear

Will this molecule be polar or nonpolar? PH₃

• polar
• nonpolar

 A lone pair is defined as

• A pair of bonding electrons

• One non-bonding electron

• A pair of non-bonding electrons on the central atom

• A pair of electrons