AP Chemical Bonding

The Lewis structure of the CO₃^2- ion is

• 
• 
• 
• 
• 

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-3

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

In the nitrite ion (NO₂^-), __________.

• both bonds are single bonds

• both bonds are double bonds

• both bonds are the same because of resonance

• there are 20 valence electrons

• there is one single and one double bond

Tags

NGSS.HS-PS1-1

As the number of covalent bonds between two atoms increases, the distance between the atoms ______ and the strength of the bond between them ______.

• increases, increases

• decreases, decreases

• increases, decreases

• decreases, increases

• is unpredictable

Of the possible bonds between carbon atoms (single, double, and triple), _____.

• a triple bond is longer than a single bond

• a double bond is stronger than a triple bond

• a single bond is stronger than a triple bond

• a double bond is longer than a triple bond

• a single bond is stronger than a double bond

Tags

NGSS.HS-PS1-1

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

The formal charge on carbon in the molecule shown is _______.

• 0

• +1

• +2

• +3

• -1

In the resonance form of ozone shown, the formal charge on the central oxygen atom is _______.

• 0

• +1

• -1

• +2

• -2

What is the hybridization of oxygen in water (H2O)?

• sp2

• sp

• dsp3

• sp3

What is the shape of a molecule with the VSEPR formula AX4E?

• linear

• trigonal planar

• tetrahedral

• seesaw