https://www.alonsoformula.com/inorganica/oxacidos.htm
https://phet.colorado.edu/sims/html/balancing-chemical-equations/latest/balancing-chemical-equations_es_ES.html
https://view.genial.ly/6013f60e22eaac0d7191c137/interactive-content-podras-salvar-la-tabla-periodica