Question

KNO3 + FeCl2 + … → NO + FeCl3 +… + … MnO2 + … + 2H2SO4 конц= К2SO4+ …+… + Br2 NaNO2 + … + H2SO4 → … + Cr2(SO4)3 + … + … Na2SO3 + … + K2Cr2O7 = Na2SO4 + … + … + … KNO3 + … + Cr2O3 → K2CrO4 + KNO2 + …

Answer 1

Ответ:

KNO3 + 3FeCl2 + 4HCl = NO + 3FeCl3 + KCl + 2H2O

MnO2 + 2KBr + 2H2SO4 = K2SO4 + MnSO4 + 2H2O + Br2

3NaNO2 + K2Cr2O7 + 4H2SO4 = 3NaNO3 + Cr2(SO4)2 + K2SO4 + 4H2O

3Na2SO3 + 4H2SO4 + K2Cr2O7 = Na2SO4 + Cr2(SO4)2 + K2SO4 + 4H2O

3KNO3 + 4KOH + Cr2O3 = 2K2CrO4 + 3KNO2 + 2H2O

Answer 2

The given chemical equations appear to be incomplete, as they lack reactants and products for several of the reactions. I'll do my best to complete them based on the reactants and products you've provided.

1. KNO3 + FeCl2 + ... → NO + FeCl3 + ... Balanced equation: 6KNO3 + 4FeCl2 + 12HCl → 6NO + 4FeCl3 + 6KCl + 6H2O

2. MnO2 + ... + 2H2SO4 конц= К2SO4+ …+… + Br2 Balanced equation: 2MnO2 + 3K2SO4 + 2H2SO4 = 2K2SO4 + 2MnSO4 + 2H2O + Br2

3. NaNO2 + ... + H2SO4 → … + Cr2(SO4)3 + … + … Balanced equation: 6NaNO2 + 3H2SO4 → 3Na2SO4 + Cr2(SO4)3 + 4H2O + 3N2

4. Na2SO3 + ... + K2Cr2O7 = Na2SO4 + … + … + … Balanced equation: 3Na2SO3 + 4K2Cr2O7 = 3Na2SO4 + 4K2CrO4 + 4Cr2O3 + 4K2SO4

5. KNO3 + ... + Cr2O3 → K2CrO4 + KNO2 + ... Balanced equation: 4KNO3 + 3Cr2O3 → 4K2CrO4 + 2KNO2 + 3O2

Please note that these balanced equations assume that the missing reactants and products are provided in the ... placeholders. If you have more specific information or need further assistance with these reactions, please provide additional details.