AP Chemistry Part 2: Chemical Bonding

O₃, is the chemical formula for ozone. What type of molecule is it?

• ionic

• polar covalent

• nonpolar covalent

Butane is the fluid found in candle lighters. Its chemical formula is C₄H₁₀. What type of molecule is it?

• ionic

• polar covalent

• nonpolar covalent

• metallic

KCl, potassium chloride, is used to stop the heart during open-heart surgery. What type of compound is it?

• ionic

• polar covalent

• nonpolar covalent

• metallic

HF, hydrofluoric acid, is a weak acid used by artists during the process of etching glass. What type of molecule is HF?

• ionic

• polar covalent

• nonpolar covalent

• metallic

Bronze is an alloy of copper (Cu) with primarily tin (Sn) as the second most prevalent element. What type of bonding occurs in a sample of bronze?

• ionic

• polar covalent

• nonpolar covalent

• metallic

Pure hydrochloric acid (HCl) is actually a gas. It is a polar covalent molecule, but which atom is partially negative?

• H

• Cl

OF₂ is a polar molecule. Which of the following represents the correct assignment of partial positive and partial negative dipoles? Hint: remember your electronegativities!

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• 
• 
• 

Water is a polar covalent molecule. Which represents the correct assignment of dipoles for H₂O? Remember: the tip of the arrow is the partial negative end and the bottom of the arrow (which looks like a plus sign) is the partial positive end.

• 
• 
• 
• 

Which type of bond involves a transfer of electrons?

• ionic

• polar covalent

• nonpolar covalent

• metallic

Which type of bond involves an unequal sharing of electrons?

• ionic

• polar covalent

• nonpolar covalent

• metallic