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633. Complete the reaction equations. To pay attention to the oxidation-reduction duality of elements in an intermediate degree of oxidation:
A) KI + KNO2 + CH3COOH → NO +
KMnO4 + KNO2 + H2SO4 → KNO3 +
B) H2SO3 + Cl2 + H2O → H2SO4 +
H2SO3 + H2S → S +
C) Na2S2O3 + I2 → Na2S4O6 +
Cl2 + I2 + H2O → HIO3 +
A) KI + KNO2 + CH3COOH → NO +
KMnO4 + KNO2 + H2SO4 → KNO3 +
B) H2SO3 + Cl2 + H2O → H2SO4 +
H2SO3 + H2S → S +
C) Na2S2O3 + I2 → Na2S4O6 +
Cl2 + I2 + H2O → HIO3 +
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Solution of problem 633 of the collection of 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% |
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