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Tanya carried out an experiment in which she placed some iron wool into some blue copper sulphate solution.
In her book she wrote:
"I predict that the iron will react with the copper sulphate because iron is higher than copper in the reactivity series. I think that i will see some colour changes"

1) Describe the two colour changes Tanya would see that would show her prediction is correct.

2) Complete this word equation for the reaction:
iron + copper sulphate =

3) Tanya then repeated the experiment with zinc in place of iron. Compare the result you would expect to the result for iron.

All answers and explanations are much appreciated. Thanks

2007-11-22 03:14:42 · 1 answers · asked by Anonymous in Science & Mathematics Chemistry

1 answers

1) The iron wool is colored orange as copper plates onto it. The blue color disappears from the solution, which may become pale green because of Fe++.

2) CuSO4 + Fe ===> Cu + FeSO4

3) The same, except that the solution becomes water-white after the blue color disappears. CuSO4 + Zn ===> Cu + ZnSO4

2007-11-22 03:24:20 · answer #1 · answered by steve_geo1 7 · 1 0

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