Question

question 9 1 pts is h₃o⁺ polar or nonpolar? not applicable polar nonpolar no answer text provided. question 10 1 pts is kro₄ polar or nonpolar? polar nonpolar not applicable

Explanation:

For $H_3O^+$, the molecule has a trigonal - pyramidal shape due to the presence of a lone pair on the oxygen atom. The oxygen is more electronegative than hydrogen, creating polar bonds. The asymmetry of the shape means the bond dipoles do not cancel out, making it polar. For $KrO_4$, the molecule has a tetrahedral geometry with no lone pairs on the central krypton atom. The bond dipoles cancel out due to the symmetry of the tetrahedral structure, making it non - polar.

Answer:

Question 9: B. Polar
Question 10: B. Nonpolar