Question

Balance the following equations:

MnO4⁻ + C2O4²- = Mn⁺2 + CO2

NO2⁻ + MnO4⁻ = NO3⁻ + MnO2 (in acid solution)

I⁻ + MnO4⁻ = I2 + MnO2 (in basic solution)

Cr2O7²- + Fe⁺2 = Cr⁺3 + Fe⁺3

MnO4⁻ + Fe⁺2 = Mn⁺2 + Fe⁺3

Bi(OH)3 + SnO2⁻2 = SnO3⁻2 + Bi (basic solution)

P + Cu⁺2 = Cu + H2PO4⁻

a) a) 1. 2MnO4⁻ + 5C2O4²- = 2Mn⁺2 + 10CO2

b) 2. 3NO2⁻ + 2MnO4⁻ = 3NO3⁻ + 2MnO2 (in acid solution)

c) 3. 2I⁻ + 5MnO4⁻ + 6H⁺ = 2I2 + 5MnO2 + 3H2O (in basic solution)

d) 4. 14Cr2O7²- + 6Fe⁺2 = 12Cr⁺3 + 6Fe⁺3

e) 5. 2MnO4⁻ + 5Fe⁺2 + 2H2O = 2Mn⁺2 + 5Fe⁺3 + 4H⁺

f) 6. 2Bi(OH)3 + 3SnO2⁻2 = 3SnO3⁻2 + 2Bi (basic solution)

g) 7. 3P + 2Cu⁺2 = 2Cu + 2H2PO4⁻

Answer 1

The balanced equations are: 1. 2MnO4⁻ + 5C2O4²⁻ = 2Mn⁺2 + 10CO2, 2. 3NO2⁻ + 2MnO4⁻ = 3NO3⁻ + 2MnO2 (in acid solution), 3. 2I⁻ + 5MnO4⁻ + 6H⁺ = 2I2 + 5MnO2 + 3H2O (in basic solution), 4. 14Cr2O7²⁻ + 6Fe⁺2 = 12Cr⁺3 + 6Fe⁺3, 5. 2MnO4⁻ + 5Fe⁺2 + 2H2O = 2Mn⁺2 + 5Fe⁺3 + 4H⁺, 6. 2Bi(OH)3 + 3SnO2⁻2 = 3SnO3⁻2 + 2Bi (in basic solution), 7. 3P + 2Cu⁺2 = 2Cu + 2H2PO4⁻

Step-by-step explanation:

Balance the following equations:

1. 2MnO4⁻ + 5C2O4²⁻ = 2Mn⁺² + 10CO2
2. 3NO2⁻ + 2MnO4⁻ = 3NO3⁻ + 2MnO2 (in acid solution)
3. 2I⁻ + 5MnO4⁻ + 6H⁺ = 2I2 + 5MnO2 + 3H2O (in basic solution)
4. 14Cr2O7²⁻ + 6Fe⁺² = 12Cr⁺³ + 6Fe⁺³
5. 2MnO4⁻ + 5Fe⁺² + 2H2O = 2Mn⁺² + 5Fe⁺³ + 4H⁺
6. 2Bi(OH)3 + 3SnO2⁻² = 3SnO3⁻² + 2Bi (in basic solution)
7. 3P + 2Cu⁺² = 2Cu + 2H2PO4⁻