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Consider the following reaction: At a certain temperature, Kc = 8.5 x 10-3. A reaction mixture...

Consider the following reaction:

At a certain temperature, Kc = 8.5 x 10-3. A reaction mixture consists of solid NH4HS, 0.18 M NH3 and 0.18 M H2S. Is this reaction mixture at equilbrium? If not, will more NH4HS form or will more NH3 and H2S form as the system reaches equilibrium?

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