“Please help! I recently purchased a copper ring that has turned my finger green. It has been a few days and the green stain is still there. Can you please tell me why does the copper ring turn my skin green?”
course:General Chemistry..
instructor:Miss Azaima...
group 13 consist of 10 members...5 of us is doing the presentation..and the other 5 is giving our best effort to publish this blog with the support from the others..
hope you all enjoy reading our blog..hv a nice tour!
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