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632. Complete the equations of the reactions, indicate what role hydrogen peroxide plays in each case:
A) PbS + H2O2 →
B) HOCl + H2O2 → HCl +
C) KI + H2O2 →
D) KMnO4 + H2O2 → MnO2 +
E) I2 + H2O2 → HIO3 +
E) PbO2 + H2O2 → O2 +
A) PbS + H2O2 →
B) HOCl + H2O2 → HCl +
C) KI + H2O2 →
D) KMnO4 + H2O2 → MnO2 +
E) I2 + H2O2 → HIO3 +
E) PbO2 + H2O2 → O2 +
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Solution of problem 632 of the collection on general ch
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Cumulative discount
| 200 $ | the discount is 15% |
| 100 $ | the discount is 10% |
| 50 $ | the discount is 7% |
| 20 $ | the discount is 5% |
| 10 $ | the discount is 3% |
| 5 $ | the discount is 2% |
| 1 $ | the discount is 1% |
Check your discount
Amount of purchases from the seller: $
Your discount: %