What is the difference between isotope K-39 and K-41 O K-41 has two more neutrons that K-39

O K-41 has two more electrons than K-39

O K-39 has 2 less protons than K-41

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm

What kind of intermolecular forces act between a hydrogen fluoride molecule and a hydrogen peroxide molecule? note: if there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.