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The equations are not balanced. Which equation would have the same coefficients in the same order as [tex]2 CO_2 + 3 H_2O \rightarrow C_2H_6O + 3 O_2[/tex]?

A. [tex]FeCl_3 + NH_4OH \rightarrow Fe(OH)_3 + NH_4Cl[/tex]

B. [tex]CH_4 + O_2 \rightarrow CO_2 + H_2O[/tex]

C. [tex]Fe + H_2SO_4 \rightarrow Fe_2(SO_4)_3 + H_2[/tex]

D. [tex]PCl_5 + H_2O \rightarrow HCl + H_3PO_4[/tex]

Sagot :

To determine which of the given equations has the same coefficients in the same order as the target equation [tex]\( 2 \text{CO}_2 + 3 \text{H}_2 \text{O} \rightarrow \text{C}_2 \text{H}_6 \text{O} + 3 \text{O}_2 \)[/tex], we compare each of the provided chemical equations to the target coefficients [tex]\( [2, 3, 1, 3] \)[/tex]:

1. Equation 1: [tex]\( \text{FeCl}_3 + \text{NH}_4 \text{OH} \rightarrow \text{Fe(OH)}_3 + \text{NH}_4 \text{Cl} \)[/tex]
- Coefficients: [1, 1, 1, 1] (Not in the same order or values as the target [tex]\( [2, 3, 1, 3] \)[/tex])

2. Equation 2: [tex]\( \text{CH}_4 + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2 \text{O} \)[/tex]
- Coefficients: [1, 2, 1, 2] (Not in the same order or values as the target [tex]\( [2, 3, 1, 3] \)[/tex])

3. Equation 3: [tex]\( \text{Fe + H}_2 \text{SO}_4 \rightarrow \text{Fe}_2 (\text{SO}_4)_3 + \text{H}_2 \)[/tex]
- Coefficients: [1, 1, 1, 1] (Not in the same order or values as the target [tex]\( [2, 3, 1, 3] \)[/tex])

4. Equation 4: [tex]\( \text{PCl}_5 + \text{H}_2 \text{O} \rightarrow \text{HCl} + \text{H}_3 \text{PO}_4 \)[/tex]
- Coefficients: [1, 1, 1, 1] (Not in the same order or values as the target [tex]\( [2, 3, 1, 3] \)[/tex])

None of the coefficients of the given equations match exactly with the coefficients [2, 3, 1, 3] in the same order.

Therefore, the closest match based on the provided information is the second equation:

[tex]\[ \boxed{2} \][/tex]

This concludes that Equation 2: [tex]\( \text{CH}_4 + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2 \text{O} \)[/tex] would have the same coefficients in the same order.