Bell Ringer 2-15-24

According to the general steps for predicting molecular polarity, what is the first thing you should do?

• Determine the symmetry of the molecule

• Draw the Lewis Dot structure

• Describe the polar bonds with arrows

• Count the number of electron groups

What is considered a polar bond based on the difference in electronegativity for the atoms in a bond?

• If the difference in electronegativity is less than 0.4

• If the difference in electronegativity is exactly 0.4

• If the difference in electronegativity is greater than 0.4

• If the difference in electronegativity is greater than 1.0

If a molecule has only central atom bonds that are identical and no lone pairs on the central atom, the molecule is probably:

• Nonpolar

• Polar

• A polar bond

• Asymmetrical

When determining the symmetry of the molecule, if the arrangement of arrows is symmetrical and the arrows are of equal length, the molecule is:

• Nonpolar

• Polar

• Asymmetrical

• A polar bond

What is the VSEPR shape of the CO2 molecule?

• Tetrahedral

• Trigonal planar

• Linear

• Bent

What is the type of molecular polarity for CO2?

• Polar covalent

• Non-polar covalent

• Ionic

• Metallic

What is the electronegativity difference between carbon and oxygen in CO2?

• 0.5

• 1.0

• 1.5

• 2.0