How many moles are represented by each of these samples? (a) 170.0 g Fe2O3
(b) 12.0 mg NO2
(c) 1.6 ✕ 1016 molecules of BF3

Identify a strong intermolecular force of attraction between an alcohol

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

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?