Hii please help me (show work pls) What is the volume of 2.5 moles of O2 at STP?

How many moles of gas is 78.4 L?

What is the molar mass of a gas that has a density of 1.43 g/L?

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

What happens when light is scattered?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg