How many moles are in 4.57 x 103 mg of Ca(NO3)2? A) 2.79 x 102 mol
B) 27.9 moles
C) 2.79 x 104 moles
D) 1.67 x 1022 moles
E) none of the above

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Which of the following is not true about the atomic model of substances?

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane