June 2023 1 7 Report
1) Методом електронного балансу урівняйте хімічну реакцію Na2SO3 + KMnO4 + H2O = Na2SO4 + MnO2 + КОН Укажіть коефіцієнт перед окисником

допоможіть будь ласка!​
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