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Balance the following redox reactions. ...

Balance the following redox reactions.
Coppoer reacts with nitric acid, a brown, gas is formed and solution turns blue.
a. `Cu+NO_(3)^(ө)rarrNO_(2)+Cu^(2+)`
b. `Cr(OH)_(4)^(ө)+H_(2)O_(2)rarrCrO_(4)^(2-)+H_(2)O` (basic solutions)
c. `SnO_(2)+CrarrSn+CO`
d. `Fe_(2)O_(3)+CrarrFe+CO`

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The correct Answer is:
A
a. `Cu+2NO_(3)^(ө)+4H^(o+)rarrCu^(2+)+2H_(2)O+2NO_(2)`
b. `2Cr(OH)_(4)^(ө)+3H_(2)O_(2)+2overset(ө)OHrarr2CrO_(4)^(2-)+8H_(2)O` (basic solution)
c. `SnO_(2)+2CrarrSn+2CO`
d. `Fe_(2)O_(3)+3Crarr2Fe+3CO`
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CENGAGE CHEMISTRY-REDOX REACTIONS-Exercise
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  2. In question 10, state which element is oxidised by which element and w...

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  3. Balance the following redox reactions. Coppoer reacts with nitric ac...

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  4. Write correctly balanced half reactions and overall equations for the ...

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  5. Starting with correctly balanced half reactions, write the overall net...

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  6. Assign oxidation numbers to the elements in the following ionic compou...

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  7. Calculate the oxidation number of the underlines elements: a. underl...

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  8. Calculate the oxidation number of the underlined elements in the follo...

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  9. What is the oxidation number of the underlined elements? a. H(2)und...

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  10. Balance the following equation stepwise: Cr(2)O(7)^(2-) + Fe^(2+)++H...

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  11. Balance the following equation in a basic solution stepwise: NO(3)^(...

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  12. Balance the following equations by the ion electron method: a. MnO(4...

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  13. Balance the following equations by oxidation number method: a. Fe^(2...

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  14. Balance the following equations by ion electron method: a. Cr(2)O(7)...

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  15. Balance the following equations by ion electron (half reaction) method...

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  16. Indicate in the following reactions which of the reactants, if any, ar...

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  17. One mole of N(2)H(4) loses ten moles of electrons to form a new compou...

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  18. In the reaction: Cr(2)O(7)^(2-) + 14H^(o+) + 6I^(Ө) rarr2Cr^(3+) + 3...

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  19. In the following equation, MnO(2) acts as MnO(4)^(2-) + 2H(2)O + 2E...

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  20. Balance the following equations by ion electron method: a. CuO + NH(...

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