A balloon containing 0.500 mol Ar at 0.00°C and 65.0 kPa pressure is expanded by adding more
argon. How many moles of argon are added to
bring the sample to a final volume of 60.0 L at
30.0°C and 45.0 kPa?
What is the original volume of the gas?
17.45 L

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.