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Well, I was answering my homework and though I was doing pretty well until I ran across this equation:
FeS + HCl ----> H2S FECl

My problem is with the H2S, whenever I put a number beside it to balance the S the H gets unbalanced and it starts a never ending cycle.

Can I put a number in between it?
Like:
2FeS + 2HCl -----> H2S + 2Fe'2'Cl ?

2007-04-23 01:32:56 · 2 answers · asked by Xianpu 4 in Science & Mathematics Chemistry

I also want to be more clear about balancing equations with parenthesis like:
Zn(OH)2 + HNO3 -----> Zn(NO3)2 + H2O

2007-04-23 01:41:31 · update #1

2 answers

For this reaction, the FeCl needs to be FeCl2 (something wrong with the homework problem) in order to have a correct equation, then the balance is
FeS + 2HCl = H2S + FeCl2
And no, you can't put a number in between in when balancing equations because that changes the chemical make-up of the compounds.

When balancing equations with parenthesis, you need to multiple each element in the parenthesis by the number after the parentheses to get a total number of elements. For example for (OH)2, there are 2O's and 2H's. Then balance just like before.

2007-04-23 01:42:12 · answer #1 · answered by jcann17 5 · 1 0

FeS + 2HCl -> H2S + FeCl2

FeCl2 is Ferrous Chloride

FeCl does not exist.

2007-04-23 01:47:03 · answer #2 · answered by ag_iitkgp 7 · 0 0

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