Revista de Energía Química y Física, Volume 6, Number 21, December-2019, is a quarterly Journal edited by ECORFAN-Bolivia. Santa Lucia N-21, Barrio Libertadores, Cd. Sucre. Chuquisaca, Bolivia, http://www.ecorfan.org/bolivia/rj_energia_quimica_fisica.php,
Editor in Chief: Ramos Escamilla-María, Co-editor: Serrudo González-Javier. ISSN: 2410-3934. Responsible for the last update of this issue ECORFAN Computer Unit. Imelda Escamilla Bouchán,
PhD. Vladimir Luna Soto, PhD. Updated as of December 31, 2019. The opinions expressed by the authors do not necessarily reflect the views of the publisher of the publication.
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