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Write the balanced chemical equation inv...

Write the balanced chemical equation involved in the manufacture of potassium- dichromate from chromite ore.

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`4FeCr_(2)O_(4) + gNa_2CO_3 + 7O_(2) to 8Na_2CrO_4 + 2Fe_2O_3 + 8CO_2`
`2Na_2CrO_4 + 2H^(+) to Na_2Cr_2O_(7) + H_2O + 2Na^(+)`
`Na_2Cr_2O_(7) + 2KCl to K_2Cr_2O_(7) + 2NaCl`.
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