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Write down the observation for the follo...

Write down the observation for the following: Reaction of concentrated HCl with `Pb_2O_2` when heated.

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### Step-by-Step Solution: 1. **Identify the Reactants and Products:** - The reactants in this reaction are concentrated hydrochloric acid (HCl) and lead(IV) oxide (PbO2). - The products formed from this reaction are lead(II) chloride (PbCl2), water (H2O), and chlorine gas (Cl2). 2. **Write the Balanced Chemical Equation:** - The unbalanced equation for the reaction is: ...
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