Are chemical equation balancer on internet true?
No, I actually posted this question to make students aware
I recently found that websites like http://www.webqc.org/contact.php give wrong and impossible reactions . For example 2HCl + Cu = CuCl2 + H2 and 2NH4OH + Na2S = (NH4)2S + 2NaOH . This double replacement reactions are impossible. This is not the only website. There are many like these. Please dont trust on these websites and copy answers from them