AP Chemistry Unit 2 Bonding Review Quiz

The Lewis structure of the CO₃^2- ion is

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• 
• 
• 
• 

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NGSS.HS-PS1-2

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

Resonance structures differ by __________.

• number and placement of electrons

• number of electrons only

• placement of atoms only

• number of atoms only

• placement of electrons only

Bond enthalpy is __________.

• always negative

• always positive

• sometimes positive and sometimes negative

• always zero

• unpredictable

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NGSS.HS-PS1-4

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

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

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

The ion NO- has _____ valence electrons.

• 10

• 12

• 14

• 15

• 16

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• 0

• +1

• +2

• +3

• -1

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NGSS.HS-PS1-2

Which of these bonds takes the most energy to break?

• single

• double

• triple

• quadruple

Tags

NGSS.HS-PS1-4

Potassium iodide, KI,has the following bonding:

• ionic

• metallic

• nonpolar covalent

• polar covalent

Tags

NGSS.HS-PS1-2