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<p>[QUOTE=&quot;kanga, post: 635707, member: 9270&quot;]I Googled it and came up with this:</p><p>&nbsp;</p><p><a href="http://www.chem.umn.edu/services/lecturedemo/info/Acid_Rain.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.chem.umn.edu/services/lecturedemo/info/Acid_Rain.html" rel="nofollow">http://www.chem.umn.edu/services/lecturedemo/info/Acid_Rain.html</a></p><p>&nbsp;</p><p>They label it a red-brown gas.</p><p>&nbsp;</p><p>There&#039;s another post on CoinTalk where there were several comments about how threads have a life of their own.</p><p>They go off on tangents.</p><p>This all started with me asking if the cent was recoverable, and we ended up in the chemistry lab.</p><p>But we learn stuff that way. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p>I don&#039;t mind as long as the original intent was satisfied.</p><p>And it was in this case.[/QUOTE]</p><p><br /></p>

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