A cobalt cube has a volume of 7.77 cm3. If cobalt has a density of 8.860 x 103 kg/m3, how many moles of cobalt atoms are in the cube?

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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?