imagine a basketball filled with liquid water. Would the basketball still hold the same number of molecules ? Can you use 22.4L/mol as the molar volume for liquid water?

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Calculate the number of molecules present in 0.750 mol of mgo.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li