Q.

When this equation is balanced using the smallest possible integers. what is the sum of the coefficients?

NH43PO4(aq)+CaCl2(aq)Ca3PO42(s)+NH4Cl(aq)

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a

8

b

9

c

11

d

12

answer is D.

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Detailed Solution

The  balanced equation is

2NH43PO4+3CaCl2Ca3PO42+6NH4Cl

the sum of coefficients is,

2+3+1+6=12

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