User talk:5.150.99.81

July 2015
Hello, I'm ChemNerd. I wanted to let you know that I undid one or more of your recent contributions because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. ChemNerd (talk) 14:23, 16 July 2015 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.