121. Задачка по химии №012 172

119. Reactions Nos. 19, 44, 69,
Select the coefficients in the schemes of redox reactions. Specify the oxidizing agent and reducing agent.
19. Ag HNO3 = AgNO3 NO2 H2O
44. H2C2O4 KMnO4 = CO2 K2CO3 MnO2 H2O
69. H2O2 KMnO4 HNO3 = Mn(NO3)2 O2 KNO3 H2O

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.