If one mol of gas = 22.4 at STP how many liters is occupied by 3.65 moles of oxygen gas at STP

Matches the chemical name of each oxide of phosphorus to its chemical formula

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Air can be considered a mixture. which statement does not explain why?