Apologia Chemistry Book: 5.10 - Classify the following molecules as polar covalent or nonpolar covalent:
a. Br2 b. CO2 c. H2S
d. CF2Cl2 e. SiF4 f. PH3
Also, do you mind explaining your answers? I want to understand. I specifically need help in understanding how to find the electronegativity of a molecule using the periodic table. Textbooks can only go so far and can be quite boring. Thank you.

a graduated cylinder.

explanation:

11 players on a field that has a maximum of 11 players

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.