Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: satha13 on September 20, 2005, 01:08:16 PM
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hello everybody
I am curious to know that if I bring Cu metal and let it reacts with Cl2 (g) alone. The product is CuCl2(s) right or not? But when i read about Galvanic cell in electrochemistry chapter. Cu(s) + Cl2(g) ---> CuCl2 (s) is redox reaction. It means that electron must be transferred when Cu(s) + Cl2 (g) to form CuCl2 (s) . What is the electron pathway for this reaction???? I must bring CuCl2(s) to dissolve in water first to form CuCl2 (aq). So as my understand:
Cu(s) + Cl2(g) ----> CuCl2(s) is not redox reaction because no electron movement, is it right?
Cu(s) + Cl2(g) -----> CuCl2(aq) is a redox reaction because it generates electron form Cu2+ and pass to Cl-, is it right?
I am new in chemistry, please inform me a right idea
Thank you very much :(
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we start with uncharged solid Cu and the gas Cl2. In CuCl2, Cu gets the charge + 2 and hence, it loses 2 electrons. 2 Cl-atoms gain one electron because we get 2 Cl(-) in CuCl2. Now derive the so called half equation for this reaction.
(according to the table of standard electrode potentials, thgis reaction will occur:))
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Well, calculate the delta H of the reaction and it'll give you a clue in the right direction.
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Your question was alredy answered in General Chemistry forum.
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Your question was alredy answered in General Chemistry forum.
Do not double post. You been warned. This topic is locked. Your thread at the general chemistry section has been deleted.