Is this an exchange . Write the balanced equation for the reaction of barium nit

Question

Is this an exchange . Write the balanced equation for the reaction of barium nitrate with sodium chromate. reaction? If so, be sure to indicate the precipitate. 465) bromide. Is this an 2. Write the balanced equation for the reaction of copperI) nitrate with potassium exchange reaction? If so, be sure to indicate the precipie No A student is given an unknown to identify. The unknown is colorless, odorless, and neutral. It produces no precipitates when reacted with any of the three halides, Cl-, Br, and 1 It produces a yellow precipitate when added to sodium chromate. Which of the following could it be? Write its exchange reaction with sodium chromate. 3. NaOH NH,OH BaCl, KCro, AgNO, NiSO HCI A second student in the ess odorless and neutral, gave a brownish precipitate when mixed with NaOH, unknown, while also colorless, odorless and neutral, gave a brownish and a white precipitahey have? Write the equation for the exchange reaction with the unknown and NaOH. above. This and a white precipitate when added to BaCl, Reactions with the other her halides gav e ye llow precipitates. the balanced reaction between the unknown and BaCI Also, write

Explanation / Answer

Ans 1 :

Yes this is an ion exchange reaction , where the compound barium chromate formed as the product is the precipitate.

The balanced molecular reaction is given as :

Ba(NO3)2 + Na2CrO4 = BaCrO4 (s) + 2NaNO3

The precipitate is formed of barium chromate , which is indicated by (s) in the product side.

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