Bonding Models and Lewis Structures

Carbonate (CO₃^2-) has how many double bonds?

• 0

• 1

• 2

• 3

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

Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?

• H

• P

• B

• C

Choose the structure that forms a double bond.

• Carbon tetrachloride (CCl₄)

• Carbon dioxide (CO₂)

• Water (H₂O)

• Cyanic Acid (HCN)

Tags

NGSS.HS-PS1-1

The Lewis dot structure for a boron atom has?

• 1 lone electron

• 3 lone electrons

• 1 pair and 1 lone electron

• two pairs of electrons

How many lone pairs are on the central atom of ClF₃?

• 3

• 0

• 4

• 2

Atoms that are bonded with an electronegativity difference of 0.3 to 1.5 are generally considered to be

• polar covalent

• nonpolar covalent

• ionic

• metallic

A bond with a partially negative end and a partially positive end is:

• ionic

• polar

• non-polar

• isometric

If Boron bonds with Hydrogen, a ____________ bond forms.

• polar covalent

• nonpolar covalent

• metallic

• ionic