(i) The unbalanced chemical equation for the reaction to form Ag2[Cr2O7] is Cr3+ + S2O82- +H2O...

(i) The unbalanced chemical equation for the reaction to form Ag₂[Cr₂O₇] is

Cr³⁺ + S₂O₈^2- +H₂O + AgNO₃ → Ag₂[Cr₂O₇] + SO₄^2- + H⁺ + NO₃^-

Balance the equation and determine which atoms were oxidised and which were reduced in the reaction.

(ii) The unbalanced chemical equation for the reaction to form K₃Cr(O₂)₄ is

K₂CrO₄ + H₂O₂ + KOH → K₃Cr(O₂)₄ + H₂O

Balance the equation. Show which atoms were oxidised and which atoms were reduced.

Solutions

Expert Solution

queen_honey_blossom answered 11 months ago

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