Calculate the molarity if 4.5 moles of sodium chloride is dissolved to make 0.15 liters of solution

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

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

Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining