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Presentación biologia

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Contiene las definiciones, caracteristicas y ejemplos de acido y base. Las teorias de Arrhenius y Brønsted-Lowry. La expresión matemática para su cálculo. Términos acidez, basicidad y neutralidad. ¿Por qué la escala de pH tiene como valores límites 0 y 14? Ejemplos de la importancia biológica del pH en el organismo. Importancia industrial del pH. Representación de la escala de pH donde se identifican las regiones de acidez, basicidad y neutralidad.

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Institution
5
Course
Biologia

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UNIDAD DE APRENDIZAJE: FENOMENOS QUIMICOS EN EL
ENTORNO.




DISOLUCIONES
ACIDO-BASE

, TABLA COMPARATIVA
SUSTANCIA PRINCIPALES CARACTERISTICAS

Tienen sabor agrio.
Cambian el tornasol de azul a rojo.
Reaccionan con las bases para formar sal y agua.
ACIDOS Reaccionan con los metales activos produciendo hidrogeno gaseoso.
Son corrosivos para la piel.
Pierden sus propiedades al reaccionar con bases.




Tienen sabor amargo.
Son resbaladizas al tacto.
Cambian el tornasol de rojo a azul.
BASES Reaccionan con los ácidos para formar agua y sales.
Suaves al tacto pero corrosivos con la piel.
Pierden sus propiedades al reaccionar con ácidos.
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Institution
Secondary school
Course
Biologia
School year
5
All documents for this subject (10)

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Uploaded on
October 16, 2021
Number of pages
7
Written in
2021/2022
Type
PRESENTATION
Person
Unknown

Subjects

  • el hidróxido de sodio
  • produciendo la sal
  • una reacción áci
  • una reacción ácido base o reacción de neutralización reacción química que ocurre entre un ácido
  • por ejemplo el ácido clorhídrico y una base
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