<?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>S0187-893X2021000100045</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2021.1.75670</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Grids II: Aromatic Acidity and Basicity]]></article-title>
<article-title xml:lang="es"><![CDATA[Cuadrículas II: Acidez y Basicidad Aromática]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lamoureux]]></surname>
<given-names><![CDATA[Guy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Álvarez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Química ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica Escuela de Química ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>45</fpage>
<lpage>57</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2021000100045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2021000100045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2021000100045&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The effect of substituents on the acidity of benzoic acids and basicity of anilines has been organized in grids to demonstrate the inductive and resonance effects. The relation between structure and pKa is emphasized by a new educational process: the Search-Organize-Predict (SOP) procedure.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El efecto de los sustituyentes en la acidez de ácidos benzoicos y la basicidad de anilinas ha sido organizado en cuadrículas para demostrar los efectos inductivos y de resonancia. Se hace énfasis en la relación entre la estructura y la pKa mediante un proceso didáctico nuevo: el procedimiento Buscar-Organizar-Predecir.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Undergraduate]]></kwd>
<kwd lng="en"><![CDATA[organic chemistry]]></kwd>
<kwd lng="en"><![CDATA[acid/base]]></kwd>
<kwd lng="en"><![CDATA[resonance effects]]></kwd>
<kwd lng="en"><![CDATA[inductive effects]]></kwd>
<kwd lng="es"><![CDATA[Pre-grado]]></kwd>
<kwd lng="es"><![CDATA[química orgánica]]></kwd>
<kwd lng="es"><![CDATA[ácido/base]]></kwd>
<kwd lng="es"><![CDATA[efectos de resonancia]]></kwd>
<kwd lng="es"><![CDATA[efectos de inducción]]></kwd>
</kwd-group>
</article-meta>
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