<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2023000300016</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2023.3.84161</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Consideraciones didácticas sobre el ajuste de reacciones redox. Descripción de un método híbrido de ajuste]]></article-title>
<article-title xml:lang="en"><![CDATA[Didactic considerations on the adjustment of redox reactions. Description of a hybrid adjustment method]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Val Castillo]]></surname>
<given-names><![CDATA[Otilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Dr. Lluís Simarro  ]]></institution>
<addr-line><![CDATA[Xátiva Valencia]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>34</volume>
<numero>3</numero>
<fpage>16</fpage>
<lpage>31</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2023000300016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2023000300016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2023000300016&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La explicación a los alumnos preuniversitarios del ajuste de las ecuaciones que representan a las reacciones redox, aunque pueda parecer para algunos un proceso meramente mecánico, supone una ocasión ideal para relacionar conceptos químicos estudiados previamente. Por ello, se propone en este artículo considerar las normas de la asignación del número de oxidación y del ajuste de las ecuaciones redox, con un enfoque más didáctico, contextualizado y evidentemente químico, enfatizando la transferencia de electrones como motivo principal de este tipo de reacciones y proponiendo un método híbrido de ajuste que combina precisamente los dos métodos más empleados: el método del número de oxidación y el método del ion-electrón, el cual permitiría predecir además, en disoluciones acuosas, el medio ácido o básico en el que transcurre la reacción.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The explanation, to high school students, of the adjustment of the equations that represent redox reactions, although to some people it may seem a merely mechanical process, is an ideal opportunity to relate previously studied chemical concepts. For this reason, it is proposed in this article to consider the rules for the assignment of the oxidation number and the adjustment of redox reactions, with a more didactic, contextualized and evidently chemical approach, emphasizing the transfer of electrons as the main reason for this type of reactions and proposing a hybrid adjustment method that precisely combines the two most used methods: the oxidation number method and the ion-electron method, with which it is also possible to predict in aqueous solutions, the acidic or basic medium in which the reaction takes place.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Asignación número de oxidación]]></kwd>
<kwd lng="es"><![CDATA[ajuste ecuaciones redox]]></kwd>
<kwd lng="es"><![CDATA[método ion-electrón modificado]]></kwd>
<kwd lng="es"><![CDATA[método híbrido de ajuste: ajuste por transferencia de electrones]]></kwd>
<kwd lng="en"><![CDATA[Oxidation number assignment]]></kwd>
<kwd lng="en"><![CDATA[adjust redox equations]]></kwd>
<kwd lng="en"><![CDATA[modified ion-electron method]]></kwd>
<kwd lng="en"><![CDATA[hybrid adjustment method: electron transfer adjustment]]></kwd>
</kwd-group>
</article-meta>
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