User talk:200.74.109.144

Recent edit to Mercury(II) hydroxide
Hello. I noticed that you recently made a contribution to the Mercury(II) hydroxide article that seemed to be a test. Your test worked! However, test edits on live articles disrupt Wikipedia and may confuse readers. If you want more practice editing, the sandbox is the best place to do so. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you! M.Bitton (talk) 22:54, 2 May 2019 (UTC)