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For each reaction that produces a precipitate, write a balance molecular equation and net ionic equation. For molecular equations, assume that all tested cations are in the form of nitrates, such as AgNO3, Pb(NO3)2, Ca(NO3)2, Fe(NO3)3, and Cu(NO3)2. Equations for No. 2(a) are given as examples; (a) Reaction: AgNO3  +  Na2S      Molecular equation:  2AgNO3(aq)  +  Na2S(aq)  ®  Ag2S(s)  +  2NaNO3(aq)     Net ionic eqn.:  2Ag+(aq)  +  S2-(aq)  ®  Ag2S(s) (Organize your equations according to the letter in each observation box. You don’t have to write any equation for those reactions that did not produce a precipitate.)

For each reaction that produces a precipitate, write a balance molecular equation and net ionic equation. For molecular equations, assume that all tested cations are in the form of nitrates, such as AgNO3, Pb(NO3)2, Ca(NO3)2, Fe(NO3)3, and Cu(NO3)2. Equations for No. 2(a) are given as examples; (a) Reaction: AgNO3  +  Na2S      Molecular equation:  2AgNO3(aq)  +  Na2S(aq)  ®  Ag2S(s)  +  2NaNO3(aq)     Net ionic eqn.:  2Ag+(aq)  +  S2-(aq)  ®  Ag2S(s) (Organize your equations according to the letter in each observation box. You don’t have to write any equation for those reactions that did not produce a precipitate.)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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  1. For each reaction that produces a precipitate, write a balance molecular equation and net ionic equation. For molecular equations, assume that all tested cations are in the form of nitrates, such as AgNO3, Pb(NO3)2, Ca(NO3)2, Fe(NO3)3, and Cu(NO3)2. Equations for No. 2(a) are given as examples;

(a) Reaction: AgNO3  +  Na2S

     Molecular equation:  2AgNO3(aq)  +  Na2S(aq)  ®  Ag2S(s)  +  2NaNO3(aq)

    Net ionic eqn.:  2Ag+(aq)  +  S2-(aq)  ®  Ag2S(s)

(Organize your equations according to the letter in each observation box. You don’t have to write any equation for those reactions that did not produce a precipitate.)

 

 

Ag+

Pb2+

Ca2+

Fe3+

Cu2+

 

 

Na2S (S2-)

(a)     

Black Precipitate

 

Ag2S

 

(b)

Black Precipitate

 

PbS

(c)

No Precipitate

 

CaS

(d)

Black Precipitate

 

Fe2S3

 

 

(e)

Black Percipiate

 

CuS
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