The reaction between sodium ethanedioate (sodium oxalate) and potassium dichromate can be represented by the following balanced chemical equation:
3 Na2C2O4 + K2Cr2O7 + 4 H2SO4 → 3 Na2SO4 + K2SO4 + Cr2(SO4)3 + 8 CO2 + 7 H2O
In this reaction, sodium ethanedioate reacts with potassium dichromate in the presence of sulfuric acid to form sodium sulfate, potassium sulfate, chromium(III) sulfate, carbon dioxide, and water.
acetone does not react with potassium dichromate
The reaction between potassium dichromate and sodium thiosulfate is a redox reaction in which potassium dichromate is reduced to chromium(III) ions and sodium thiosulfate is oxidized to form sulfur. The overall reaction can be summarized by the following equation: K2Cr2O7 + 3 Na2S2O3 → Cr2(SO4)3 + 3 Na2SO4 + 2 K2SO4
The reaction between potassium dichromate (K2Cr2O7) and iron(II) sulfate (FeSO4) results in a double displacement reaction producing iron(III) chromate (Fe2(CrO4)3) and potassium sulfate (K2SO4). The balanced equation is: 3FeSO4 + K2Cr2O7 → Fe2(CrO4)3 + K2SO4.
Potassium dichromate reacts with nitric acid to form chromium(III) nitrate, nitrogen dioxide gas, and water. The balanced chemical equation for this reaction is: 3K2Cr2O7 + 8HNO3 → 3Cr(NO3)3 + 3KNO3 + 4H2O + 3NO2.
Potassium dichromate is orange and when it reacts with ethanol which is a primary alcohol it is going to oxidise it to form aldehyde which is colorless. so the color change is from Orange to Colorless. :)
acetone does not react with potassium dichromate
The reaction between glucose and acidified potassium dichromate is the oxidation of glucose to form gluconic acid. The chemical equation for this reaction is: C6H12O6 + H2Cr2O7 + H+ -> C6H11O7COOH + Cr2(SO4)3 + H2O
I think the reaction equation can be written as follows: K2Cr2O7 (aq) + BaCl2(aq) ------ BaCr2O7(s) + 2KCl(aq).
http://wiki.answers.com/What_is_the_word_equation_for_the_reaction_of_sulphur-di-oxide_with_acidified_potassium_dichromate
3 K2Cr2O7 + 2 (NH4)3PO4 ------------3 (NH4)2Cr2O7 + 2 K3PO4
The oxidation of propanal (CH3CH2CHO) by potassium dichromate (K2Cr2O7) in acidic conditions produces propanoic acid (CH3CH2COOH). The oxidation equation is: CH3CH2CHO + K2Cr2O7 + H2SO4 → CH3CH2COOH + Cr2(SO4)3 + K2SO4 + H2O.
The reaction between potassium dichromate and hydrochloric acid forms chromic chloride, chlorine gas, and water. This reaction is a redox reaction, as the potassium dichromate is reduced while the hydrochloric acid is oxidized.
The reaction between potassium dichromate and sodium thiosulfate is a redox reaction in which potassium dichromate is reduced to chromium(III) ions and sodium thiosulfate is oxidized to form sulfur. The overall reaction can be summarized by the following equation: K2Cr2O7 + 3 Na2S2O3 → Cr2(SO4)3 + 3 Na2SO4 + 2 K2SO4
by the reaction of lead nitrate with potassium chromate or potassium dichromate
When carbon dioxide reacts with potassium dichromate in an acidic solution, a color change from orange to green occurs due to the reduction of chromium(VI) to chromium(III) ions. The balanced chemical equation for this reaction is 3CO2 + Cr2O7^2- + 8H^+ -> 3CO2 + 2Cr^3+ + 4H2O.
The reaction between potassium dichromate (K2Cr2O7) and iron(II) sulfate (FeSO4) results in a double displacement reaction producing iron(III) chromate (Fe2(CrO4)3) and potassium sulfate (K2SO4). The balanced equation is: 3FeSO4 + K2Cr2O7 → Fe2(CrO4)3 + K2SO4.
When iron reacts with potassium dichromate, iron(II) ion is oxidized to iron(III) ion by dichromate, which gets reduced to chromium(III) ion. The balanced chemical equation for this reaction is: 6 Fe^2+ + 14 H^+ + Cr2O7^2- --> 6 Fe^3+ + 2 Cr^3+ + 7 H2O