Please follow the steps in the other picture Cr203 + NazCO3 + KNO3 ----> Na2CrO4 + CO2 + KNO2Step 1:3+ 2-1+ 4- 2-1+ 5+ 2-1+ 6+ 2-1+ 3+ 2-4+ 2-Cr2 O3 + Naz C 03 + KN O3 ---> Na2 Cr 04 + K N O2 +C O2Step 2:The oxidation number of Cr changes from 3+ to 6+. Likewise, that of N changes from 5+ to 3+.Step 3:3+Cr2O3 + NazCO3 + KNO3 ---> NazCrO4 + CO2 + KNO23 e lost5+6+3+2.e gainedStep 4:Cr2O3 + NazCOa+ KNO3 ---> 2 Na2CrO4_ + CO2 + KNO2|3 e lost x 26 eZe gained 1 = 2 eStep 5:Cr2O3 + NazC03 + KNO3 ----> 2 Na2CrO4 ,+ CO2 +6 e x 1 = 6 eKNO2Zex3-6eThe appropriate factors are 1 and 3.1 Cr203 + NazCO3 + 3 KNO3----> (1 x 2) Na2CrO4 + CO2 + 3 KNO2 KMN04 +H2SO4→ K,SO4 + MnSO4 + CasO4 + CO2 + H202.CaC204 +Substance oxidized:Substance reduced:Balanced equation:

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Answered: CaC204 + H,SO4 K,So4 + MnSO4 + Caso4 +…

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CaC204 + H,SO4 K,So4 + MnSO4 + Caso4 + CO2 + H20 2. KMN04 + Substance oxidized: Substance reduced: Balanced equation:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Please follow the steps in the other picture

Cr203 + NazCO3 + KNO3 ----> Na2CrO4 + CO2 + KNO2
Step 1:
3+ 2-
1+ 4- 2-
1+ 5+ 2-
1+ 6+ 2-
1+ 3+ 2-
4+ 2-
Cr2 O3 + Naz C 03 + KN O3 ---> Na2 Cr 04 + K N O2 +C O2
Step 2:
The oxidation number of Cr changes from 3+ to 6+. Likewise, that of N changes from 5+ to 3+.
Step 3:
3+
Cr2O3 + NazCO3 + KNO3 ---> NazCrO4 + CO2 + KNO2
3 e lost
5+
6+
3+
2.e gained
Step 4:
Cr2O3 + NazCOa+ KNO3 ---> 2 Na2CrO4_ + CO2 + KNO2
|3 e lost x 26 e
Ze gained 1 = 2 e
Step 5:
Cr2O3 + NazC03 + KNO3 ----> 2 Na2CrO4 ,+ CO2 +
6 e x 1 = 6 e
KNO2
Zex3-6e
The appropriate factors are 1 and 3.
1 Cr203 + NazCO3 + 3 KNO3
----> (1 x 2) Na2CrO4 + CO2 + 3 KNO2

KMN04 +
H2SO4→ K,SO4 + MnSO4 + CasO4 + CO2 + H20
2.
CaC204 +
Substance oxidized:
Substance reduced:
Balanced equation:

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