Determine if phosphorus trihydride, PH₃, is polar or nonpolar.

Predict the shape and polarity of each of the following molecules, which have polar covalent bonds: (6.8, 6.9) a. A central atom with three identical bonded atoms and one lone pair.

In a water molecule, $H_{2}O$, which atom carries a partial positive charge (${\delta }^{+}$) due to oxygen being more electronegative?

Which substance is an example of a nonpolar compound?

Match each of the Lewis structures (a to c) with the correct diagram (1 to 3) of its shape, and name the shape; indicate if each molecule is polar or nonpolar. Assume X and Y are nonmetals and all bonds are polar covalent. (6.6, 6.8, 6.9) 1.

2.

3.

c.

Match each of the formulas (a to c) with the correct diagram (1 to 3) of its shape, and name the shape; indicate if each molecule is polar or nonpolar. (6.6, 6.8, 6.9) 1.

2.

3.

a. PBr₃