Keroro

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What is the net ionic equation for the reaction between FeS and HCl?



A. FeS(s) + 2H+(aq) à H2S(g) + Fe2+(aq)
B. FeS(s) + 2H+(aq) + 2Cl-(aq) à H2S(g) + FeCl2(s)
C. FeS(s) + 2H+(aq) + 2Cl-(aq) à H2(g) + S(s) + FeCl2(s)
D. Fe2+(aq) + S2-(aq) + 2H+(aq) + 2Cl-(aq) à H2S(g) + FeCl2(s)
E. S2-(aq) + 2H+(aq) à H2S(g)




why A is answer?
 

electron

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why A is answer?[/QUOTE]
I may possibly be wrong but I think it is because CL- is a spectator ion and doesnt do anything important so it does not go into the ionic equation. I wish I could explain this better but im still relearning all this stuff as well.
 

SgtSadhu

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electron said:
why A is answer?
I may possibly be wrong but I think it is because CL- is a spectator ion and doesnt do anything important so it does not go into the ionic equation. I wish I could explain this better but im still relearning all this stuff as well.[/QUOTE]

yep your right, in the net ionic equation you dont include spectator ions
 

mhl397

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Keroro said:
What is the net ionic equation for the reaction between FeS and HCl?



A. FeS(s) + 2H+(aq) à H2S(g) + Fe2+(aq)
B. FeS(s) + 2H+(aq) + 2Cl-(aq) à H2S(g) + FeCl2(s)
C. FeS(s) + 2H+(aq) + 2Cl-(aq) à H2(g) + S(s) + FeCl2(s)
D. Fe2+(aq) + S2-(aq) + 2H+(aq) + 2Cl-(aq) à H2S(g) + FeCl2(s)
E. S2-(aq) + 2H+(aq) à H2S(g)




why A is answer?

Cl2 is spectator and FeS and H2S are insoluble.

i think that's right. if not then sorry