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Question

KOH(aq)+H3PO4 (aq)K3PO4(aq)+H2O(l)
When the equation for the reaction represented above is balanced and the coefficients are reduced to the lowest whole number terms, the coefficient for H2O is:

A
1
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B
2
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C
3
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D
4
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Solution

The correct option is C 3
The balanced equation can be written as
3 KOH + H3PO4 = K3PO4 + 3H2O
Thus the coefficient of H2O is 3
Option C is the correct answer.

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