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Write the balanced chemical equation:

3 HClO4 + Al(OH)3 ---> Al (ClO4)3 + 3H2O

So, the molar ratios of the reactants are: 3 moles HClO4 : 1 mol Al (OH3)

And the answer is that, in a neutralization reaction, 3 moles of HClO4 react with 1 mol Al (OH)3.
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Answer:

3 moles of HClO₄ is required to neutralize 1 mole Al(OH)₃.

Explanation:

The neutralization reaction between HClO₄and Al(OH)₃is as follows:

HClO₄ + Al(OH)₃ -> Al(ClO₄)₃ + H₂O

The balanced reaction is as follows:

3HClO₄ + Al(OH)₃ -> Al(ClO₄)₃ + 3H₂O

Based on the balanced molecular equation the molar ratio of HClO₄ : Al(OH)₃ is 3:1.  

So 3 moles of HClO₄ is required to neutralize 1 mole Al(OH)₃.  

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