User talk:207.170.212.75

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February 2009[edit]

Information.png Welcome to Wikipedia. The recent edit you made to the page Calcium bicarbonate has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Gail (talk) 03:21, 18 February 2009 (UTC)