Explain how to determine whether a molecule is polar
or nonpolar. Include factors
affecting the molecular
polarity of a covalent
compound. Include an
example of each.

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Can someone me with 3 and 4 plz. this is for masteries test.