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K2Cr2O7 overset(Delta)(to) ? + ? +?...

`K_2Cr_2O_7 overset(Delta)(to) ? + ? +? `

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To solve the question regarding the thermal decomposition of potassium dichromate (K₂Cr₂O₇), we will break down the reaction step by step. ### Step 1: Identify the reactant The reactant given is potassium dichromate, K₂Cr₂O₇. When heated, it undergoes thermal decomposition. ### Step 2: Write the decomposition products Upon heating, potassium dichromate decomposes to form potassium chromate (K₂CrO₄), chromium trioxide (CrO₃), and oxygen gas (O₂). ...
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K_(2)Cr_(2)O_(7) overset(Delta) to K_(2)CrO_(4)+Cr_(2)O_(3)+O_(2)uarr

(I) FeCr_2 O_4 + NaOH + air to (A) + Fe_2O_3 (II) (A) + (B) to NaCr_2O_7 (III) Na_2Cr_2O_7 + X overset(Delta)(to) Cr_2O_3 (IV) Cr_2O_3 + Y overset(Delta ) (to) Cr Na_2CrO_4 and Fe_2O_3 are separated by :

(I) FeCr_2 O_4 + NaOH + air to (A) + Fe_2O_3 (II) (A) + (B) to NaCr_2O_7 (III) Na_2Cr_2O_7 + X overset(Delta)(to) Cr_2O_3 (IV) Cr_2O_3 + Y overset(Delta ) (to) Cr Compounds (A) and (B) are

(I) FeCr_2 O_4 + NaOH + air to (A) + Fe_2O_3 (II) (A) + (B) to NaCr_2O_7 (III) Na_2Cr_2O_7 + X overset(Delta)(to) Cr_2O_3 (IV) Cr_2O_3 + Y overset(Delta ) (to) Cr (X) and (Y) are :

FeCr_(2)O_(4)+NaOH+"air" to (A)+Fe_(2)O_(3) (A)+(B) to Na_(2)Cr_(2)O_(7) Na_(2)Cr_(2)O_(7)+X overset(Delta)to Cr_(2)O_(3) Cr_(2)O_(3)+Y overset(Delta)to Cr (X) and (Y) are :