Air containing 40% mole % water vapor at an initial pressure of latm is cooled in a 1 liter sealed vessel from 200°c to 15 c. draw the process. what is the pressure in the vessel at the end of the process? a what is the mole fraction of water at the end of the process? b. how much water, in grams, condenses?

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added