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226. Compose electronic equations and indicate which process - oxidation or reduction - occurs in the following transformations:
Mn6 + -Mn2 +; Cl5 + -Cl-; N3 - N5 +
On the basis of the electronic equations, arrange the coefficients in the reaction equation, following the scheme:
Cu2O + HNO3 - Cu (NO3) 2 + NO + H2O
Mn6 + -Mn2 +; Cl5 + -Cl-; N3 - N5 +
On the basis of the electronic equations, arrange the coefficients in the reaction equation, following the scheme:
Cu2O + HNO3 - Cu (NO3) 2 + NO + H2O
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Solution of task 226 of Chemistry Book Shimanovich 2003
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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: %