580. Complete the reaction equations by placing the coefficients using the electron-ion (or electronic) balance method:
a) acidic environment
Job No. Condition
580 KI KNO2 H2SO4=I2 NO K2SO4 H2O
b) alkaline environment
Job No. Condition
610 NaCrO2 PbO2 NaOH = Na2CrO4 Na2PbO2 H2O

c) neutral environment
Job No. Condition
640 KMnO4 MnSO4 H2O=MnO2 K2SO4 H2SO4

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