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2) The volume of the system is increased for each of the following reactions below. Explain...

2) The volume of the system is increased for each of the following reactions below. Explain whether each system would shift forward, in reverse, or stay the same (no effect) and give brief explanation for your answer.
(a) 2 SO2 (g) + O2 (g)2 SO3 (g) (b) H2 (g) + I2 (g)2HI (g)
(c) CaCO3 (g)CaO (s) + CO2 (g) (d) Ag+ (aq) + Cl- (aq)AgCl (s)
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