Determine the number of moles of oxygen atoms in each of the following:

2.02 mol N2O
2.28×10−2 mol H2CO3
23.8 mol CO2

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2