Question

BaO + CrO3 = Cl2O7 + KOH = MnO + CO = PbO2 + H2SO4 V2O5 + K2O= SnO2 = NiO

Answer 1

Решение на картинке.

Answer 2

It seems like you have written a series of chemical equations. Let's balance each of them step by step:

1. BaO + CrO3 = Ba(CrO4)2

2. Cl2O7 + 2KOH = 2KClO4 + H2O

3. MnO + CO = Mn + CO2

4. PbO2 + H2SO4 = PbSO4 + H2O + O2

5. V2O5 + 5K2O = 2K2O * V2O5 (It looks like there might be a typo or missing information in this equation.)

6. SnO2 = SnO2 (This equation is already balanced as it represents the decomposition of tin(IV) oxide into tin(II) oxide.)

7. NiO = NiO (This equation is balanced as it represents the formation of nickel(II) oxide.)

Please note that some of these reactions might not be balanced unless additional information is provided. Also, equation #5 seems to be incomplete or incorrect due to missing coefficients or product/reactant information. If you can provide more details or clarify the reaction, I'd be happy to help balance it as well.