User talk:189.172.102.121

April 2014
Hello, I'm Petrb. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to Brønsted–Lowry acid–base theory, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Petrb (talk) 15:08, 30 April 2014 (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.

Please refrain from making nonconstructive edits to Wikipedia, as you did at Brønsted–Lowry acid–base theory with this edit. Your edits appear to constitute vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Administrators have the ability to block users from editing if they repeatedly engage in vandalism. Thank you. Petrb (talk) 15:09, 30 April 2014 (UTC)