<?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>S0187-893X2017000100002</article-id>
<article-id pub-id-type="doi">10.1016/j.eq.2016.09.002</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Mapa cronológico da evolução das definições ácido-base: um potencial material de apoio didático para contextualização histórica no ensino de química]]></article-title>
<article-title xml:lang="en"><![CDATA[Chronological map of the evolution of acid-base theories: a potential educational tool for historical background in chemistry teaching]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[Felipe de Moura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aricó]]></surname>
<given-names><![CDATA[Eliana Maria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal do ABC Centro de Ciências Naturais e Humanas Laboratório de Eletroquímica e Materiais Nanoestruturados]]></institution>
<addr-line><![CDATA[Santo André SP]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Federal de Educação, Ciência e Tecnologia  ]]></institution>
<addr-line><![CDATA[São Paulo SP]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>28</volume>
<numero>1</numero>
<fpage>2</fpage>
<lpage>10</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2017000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2017000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2017000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: A ciência tem sido ensinada e compreendida pelos alunos como resultado de eventos lineares no tempo, sucessivos e interligados. Essa forma de pensar sobre o trabalho científico tem levado ao mau entendimento da natureza da ciência. Objetivando contribuir para combater essa distorção na percepção da ciência, o presente trabalho relata uma breve revisão bibliográfica sobre os conceitos de ácidos e bases, partindo-se da análise do avanço dessas definições na história, especialmente no século XIX e XX, que é representada por meio de um mapa cronológico que interrelaciona as linhas de pesquisa científica dos principais pesquisadores que desenvolveram definições para ácidos e bases nessa área. O mapa cronológico pretende ser uma ferramenta didática eficiente para ilustrar a evolução da ciência no desenvolvimento das definições ácido-base. Tem-se como finalidade sua utilização em sala de aula, pois permite ao aluno compreender as conexões das definições científicas e analisar o perfil da evolução dos trabalhos científicos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Science has been taught and understood by students as a result of events in linear time, successive and interrelated. This way of thinking about the scientific work has led to the misunderstanding of the nature of science. To contribute to combat this distortion in the perception of science, this study aims to report a literature review on the concepts of acids and bases, starting from the analysis of the progress of these theories in history, especially in the nineteenth and twentieth century. The progress of these theories is represented by means of a chronological map that interrelates the scientific research lines of the main researchers that have developed theories that area. The chronological map aims to be an effective teaching tool to illustrate the evolution of science in the development of acid-base theories. It may be used in the classroom by allowing students to understand the connections of scientific theories and analyze the profile of developments in scientific work.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[História da química]]></kwd>
<kwd lng="pt"><![CDATA[Definições ácido-base]]></kwd>
<kwd lng="pt"><![CDATA[Mapa cronológico]]></kwd>
<kwd lng="en"><![CDATA[History of chemistry]]></kwd>
<kwd lng="en"><![CDATA[Acid-base theory]]></kwd>
<kwd lng="en"><![CDATA[Chronological map]]></kwd>
</kwd-group>
</article-meta>
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