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April 23, 2014

Homework Help: Chemistry

Posted by Z on Friday, November 30, 2012 at 6:37pm.

When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs?

a. KCl(aq) + Pb(NO3)2 (aq) KNO3 (aq) + PbCl2 (s)

b. KNO3 (aq) + PbCl2 (s) KCl(aq) + Pb(NO3)2 (aq)

c. K+ (aq) + NO3-(aq) KNO3 (aq)

d. 2KCl (aq) + Pb(NO3)2 (aq) 2 KNO3 (aq) + PbCl2 (s)

e. KCl(aq) + Pb(NO3)2 (aq) KNO3 (aq) + PbCl(s)

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