Which nail polish lasts longer matte or shiny

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?

How many grams of mgbr2 are needed to produce 75g or metal?

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+