Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He. What is the mole fraction of O2 in the mixture? What is the mole fraction of Ar in the mixture?

Without doing any calculations, determine which sample contains the most atoms. Without doing any calculations, determine which sample contains the most atoms. a 1-g sample of thorium a 1-g sample of carbon a 1-g sample of copper

When 8.21 l of c3h8 (g) burn in oxygen, how many liters of oxygen are consumed? all gas volumes are measured at the same temperature and pressure but not at stp?

What is the density of 8.96g/1ml

What is the total number of valence electrons in a germanium atom in the ground state

A, 3B, and 7A are examples of on the periodic table.

How do carbon-12 and carbon-13 differ? Select all that apply. They have different amounts of neutrons. They have different atomic charges. They have different mass numbers. They have different amounts of electrons.

Why arent the jaguars and sloths growing and thriving?

If a spoon is hot after leaving it on the pot that was on the stove. What heat transfer is that.

If a small amount of ferrous ammonium sulfate is spilled when transferring

List one reason as to why historical growth has slowed in recent years.