Hydrogen and oxygen react to form water. which statement best describes the reactants and product at equilibrium? a. the reaction between oxygen and hydrogen stops. b. the concentration of water is the same as for oxygen and hydrogen. c. the concentrations of water, oxygen, and hydrogen are stable. d. the concentration of oxygen and hydrogen are zero.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)