Vsper

Who could this be? 

• CO₂

• NH₃

• H₂S

• CH₄

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Who could this molecule be?

• CH₄

• CO₂

• PCl₅

• BF₃

Tags

NGSS.HS-PS1-3

NH₃ has how many lone pairs?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-2

Choose the correct shape for this molecule:

• Trigonal planar

• Trigonal pyramidal

• Bent

• Tetrahedral

Which of the following best explain how to determine the shape of the molecule above?

• there are 3 atoms bonded to the central atom and 2 lone pairs

• there are single bonds

• there are 3 atoms bonded to the central atom and 0 lone pairs of electrons on the central atom

Based on the Lewis structure for H₂CO, the central atom has

• 3 bonding groups and 0 lone pairs

• 4 bonding groups and 0 lone pairs

• 4 bonding groups and 2 lone pairs

• 3 bonding groups and 2 lone pairs

Tags

NGSS.HS-PS1-2

In the following lewis structure, how many lone pairs of electrons are around the central atom?

• 0 lone pairs of electrons

• 1 lone pair of electrons

• 3 lone pairs of electrons

• 4 lone pairs of electrons

In the following lewis structure, how many lone pairs of electrons are around the central atom?

• 0 lone pairs of electrons

• 1 lone pair of electrons

• 2 lone pairs of electrons

• 4 lone pairs of electrons

VSEPR theory is to

• determine the number of bonding and lone pairs electrons

• determine the number of ECC

• determine the shape and geometry of molecule

• determine the lewis structure of molecule

What molecular shape is the structure shown here? (BCl₃)

• linear

• trigonal planar

• tetrahedral

• trigonal pyramidal