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Balance the equation: Al+CuCl_(2)arrow Cu+AlCl_(3) 2:3:3:2 2:1:1:2 1:2:2:1 1:3:3:1 Balance the equation: FeCl_(3)+NaOHarrow NaCl+Fe(OH)_(3) 1:3:3:1 2:2:2:2 1:1:1:3 3:1:1:1

Pergunta

Balance the equation: Al+CuCl_(2)arrow Cu+AlCl_(3)
2:3:3:2
2:1:1:2
1:2:2:1
1:3:3:1
Balance the equation: FeCl_(3)+NaOHarrow NaCl+Fe(OH)_(3)
1:3:3:1
2:2:2:2
1:1:1:3
3:1:1:1

Balance the equation: Al+CuCl_(2)arrow Cu+AlCl_(3) 2:3:3:2 2:1:1:2 1:2:2:1 1:3:3:1 Balance the equation: FeCl_(3)+NaOHarrow NaCl+Fe(OH)_(3) 1:3:3:1 2:2:2:2 1:1:1:3 3:1:1:1

Solução

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AuroraMestre · Tutor por 5 anos

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### Question 1: Balance the equation \( \mathrm{Al}+\mathrm{CuCl}_{2} \rightarrow \mathrm{Cu}+\mathrm{AlCl}_{3} \)<br /><br />Correct Answer: **2:3:3:2**<br /><br />Explanation: <br />To balance the equation: <br />- Aluminum (Al) reacts with copper(II) chloride (\( \mathrm{CuCl}_2 \)) to produce copper (Cu) and aluminum chloride (\( \mathrm{AlCl}_3 \)). <br />- Start by balancing the chlorine (Cl) atoms. Since \( \mathrm{AlCl}_3 \) has 3 Cl atoms, and \( \mathrm{CuCl}_2 \) has 2 Cl atoms, the least common multiple is 6. <br />- This requires 2 \( \mathrm{AlCl}_3 \) molecules (6 Cl atoms) and 3 \( \mathrm{CuCl}_2 \) molecules (6 Cl atoms). <br />- Next, balance the aluminum (Al) and copper (Cu) atoms accordingly. <br /><br />The balanced equation is: <br />\[ 2\mathrm{Al} + 3\mathrm{CuCl}_2 \rightarrow 3\mathrm{Cu} + 2\mathrm{AlCl}_3 \] <br /><br />---<br /><br />### Question 2: Balance the equation \( \mathrm{FeCl}_{3}+\mathrm{NaOH} \rightarrow \mathrm{NaCl}+\mathrm{Fe}(\mathrm{OH})_{3} \)<br /><br />Correct Answer: **1:3:3:1**<br /><br />Explanation: <br />To balance the equation: <br />- Iron(III) chloride (\( \mathrm{FeCl}_3 \)) reacts with sodium hydroxide (\( \mathrm{NaOH} \)) to produce sodium chloride (\( \mathrm{NaCl} \)) and iron(III) hydroxide (\( \mathrm{Fe(OH)}_3 \)). <br />- Each \( \mathrm{FeCl}_3 \) molecule contains 3 Cl atoms, so it will require 3 \( \mathrm{NaOH} \) molecules to provide 3 Na atoms for \( \mathrm{NaCl} \). <br />- The hydroxide ions (\( \mathrm{OH}^- \)) from the 3 \( \mathrm{NaOH} \) molecules combine with the Fe atom to form \( \mathrm{Fe(OH)}_3 \). <br /><br />The balanced equation is: <br />\[ \mathrm{FeCl}_3 + 3\mathrm{NaOH} \rightarrow 3\mathrm{NaCl} + \mathrm{Fe(OH)}_3 \]
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