Question

question 9 6 pts which of the following is a nonpolar molecule? o h2s o co2 o hf o nh3 question 10 6 pts which of the following is a nonpolar molecule? o ch4 o kcl o hcl o h2o

Explanation:

A non - polar molecule has an even distribution of charge. In $CO_2$, it is linear ($O = C=O$) and the bond dipoles cancel out, making it non - polar. In $CH_4$, it has a tetrahedral shape and the symmetric distribution of C - H bonds results in a non - polar molecule. $H_2S$ is bent, $HF$ is polar due to high electronegativity of F, $NH_3$ is trigonal pyramidal, $KCl$ is ionic, $HCl$ is polar due to electronegativity difference, and $H_2O$ is bent and polar.

Answer:

Question 9: B. $CO_2$
Question 10: A. $CH_4$