4. When the following reaction is at equilibrium, which of these relationships is always true? 2O3(g) 3O2(g)
a. [O3] / [O2]
b. [O3]2/ [O2]3
c. Kc=[O3]2/ [O2]3
d. Kc= [O2]3 /[O3]2

Explanation for basic character?

Which of the following is a physical property flammability heat of combustion solubility and toxicity

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?