The loss of static electricity as electric charges move off an object is called

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Stage in which a star’s outer layers have started to cool and grow outward?