Which answer does not describe this system at equilibrium?
no(g) + o2(g) + 2 no2 (g)
a. the rates of the forward and reverse reactions are equal.
b. the forward reaction does not go to completion.
c. the reaction is reversible.
d. the concentration of reactants and products are all equal

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)

The correct answer is:   bri hope this answer was ! : )

Ibelieve the answer is balance! hope my answer has you : )

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b