A chromatic/dichromate system is prepared 2CrO42-(aq) + 2   <--->   Cr2O72-(aq) + H2O Predict the shift in direction of the net reaction when a. an acid is added b. base is added c. concentration of chromate ions is decreased through precipitation as BaCrO4 d. dichromate is decreased e. the system is diluted with water

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