AP Chemistry Unit 2

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

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

• Single

• Double

• Triple

The electrons in a polar covalent molecule are shared...

• Evenly

• Unevenly

• Electrons are not shared

• None of the Above

The electrons in a nonpolar covalent molecule are shared...

• Evenly

• Unevenly

• Electrons are not shared

• None of the Above

In a nonpolar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

The polarity of a bond is determined by...

• The sum of the electronegativities of the two atoms

• The difference in the electronegativities of the two atoms

• The charges of the atoms

• None of the Above

Partial charges are present in which type of bond?

• Ionic

• Nonpolar Covalent

• Polar Covalent

• Both Polar Covalent and Ionic

Molecules that contain whole number charges on atoms (+1,-3, etc.) must be...

• Polar Covalent

• Nonpolar Covalent

• Ionic

• Polar Covalent or Ionic

Tags

NGSS.HS-PS1-3

A diatomic molecule like O₂ is always _____ because electrons are shared _____

• nonpolar; unequally

• polar; equally

• nonpolar; equally

• polar; unequally

What is the bond strength between N and O?

• N-O (Single bond)

• N=O (double bond)

• N Ξ O (Triple bond)

• N-O (between single and double bond)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2