Molecular Chemistry

The Lewis structure of N₂H₂ shows __________.

• a nitrogen-nitrogen triple bond

• a nitrogen-nitrogen single bond

• each nitrogen has one lone pair

• each nitrogen has two lone pairs

• each hydrogen has one lone pair

The ability of an atom in a molecule to attract electrons is best quantified by the ______.

• electronegativity

• paramagnetism

• diamagnetism

• electron change-to-mass ratio

• first ionization energy

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

How many total valence electrons are participating in bonding in the molecule above?

• 8

• 4

• 2

• 3

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

NH₃ has how many lone pairs?

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

CCl₄ has how many double bonds?

• 0

• 1

• 2

• 3

Tags

NGSS.HS-PS1-1

In HCN (Carbon is usually the central atom) what kind of bond is between the C and N

• Single

• Double

• Triple

CH₂O has which of the following?

• Multiple double bonds

• Multiple single bonds

• One double bond

• One single bond

• A lone pair

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2