Complete and blance the following reactions:
i. `HNO_(3)+HCI rarr NO+CI_(2)`
ii. `Ce^(3+)+S_(2)O_(8)^(2-)rarr SO_(4)^(2-)+Ce^(4-)`
iii. `CI_(2)+OH^(Theta)rarr CI^(Theta)+CIO^(Theta)`

Explanation

To complete and balance the given reactions, we will follow a systematic approach for each reaction.

### Reaction i: \( HNO_3 + HCl \rightarrow NO + Cl_2 \)

1. **Identify the oxidation states:**
- In \( HNO_3 \), nitrogen is in the +5 oxidation state.
- In \( HCl \), chlorine is in the -1 oxidation state.
- In the products, nitrogen in \( NO \) is in the +2 oxidation state, and chlorine in \( Cl_2 \) is in the 0 oxidation state.
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