When the following equation is balanced, what is the coefficient of $H_{2} O$ ?
$P H_{3} + O_{2} \to P_{2} O_{5} + H_{2} O$

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Solution

The correct option is C $3$
The unbalanced chemical equation is
$P H_{3} + O_{2} \to P_{2} O_{5} + H_{2} O$
Balance P atoms by adding coefficient 2 to phosphine.
$2 P H_{3} + O_{2} \to P_{2} O_{5} + H_{2} O$
Balance H atoms by adding coefficient 3 to water.
$2 P H_{3} + O_{2} \to P_{2} O_{5} + 3 H_{2} O$
Balance O atoms by adding coefficient 4 to oxygen.
$2 P H_{3} + 4 O_{2} \to P_{2} O_{5} + 3 H_{2} O$ .
This is balanced chemical equation. The coefficient of water is 3.

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Similar questions

P H_{3} + O_{2} \to P_{2} O_{5} + H_{2} O

Above equation is balanced and coefficients are the lowest whole number, find the coefficient for

H_{2} O

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C_{3} H_{8} + O_{2} \to {C O}_{2} + H_{2} O

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___C_{6} H_{6} +___O_{2} \to___{C O}_{2} +___H_{2} O

Balance the following equation by short-cut method and write the coefficient for $O_{2}$
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Q. What coefficients are required to balance the following equation?

{C H}_{4} + O_{2} \to {C O}_{2} + H_{2} O

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When the following equation is balanced, what is the coefficient of H2O ?PH3+O2→P2O5+H2O

When the following equation is balanced, what is the coefficient of $H_{2} O$ ?
$P H_{3} + O_{2} \to P_{2} O_{5} + H_{2} O$