at 450oc, 2.0 moles each of h2(g), i2(g), and hi(g) are combined in a 1.0 l rigid container. the value of kc at 450oc is 50. which of the following will occur as the system moves toward equilibrium? responses more h2(g) and i2(g) will form. more h 2 ( g ) and i 2 ( g ) will form. more hi(g) will form. more hi( g ) will form. the total pressure will decrease. the total pressure will decrease. no net reaction will occur, because the number of molecules is the same on both sides of the equation.