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REPASO
ESTADOS DE LA MATERIA
CAMBIOS FÍSICOS
• AFECTAN LA FORMA MÁS NO LA COMPOSICIÓN DE LA MATERIA.
• SE MANTIENE LA IDENTIDAD DE CADA SUSTANCIA Y POR LO TANTO, NO SE FORMAN SUSTANCIAS NUEVAS.
• PODEMOS ENCONTRAR LOS CAMBIOS DE ESTADO: UNA MODIFICACIÓN EN LA ORGANIZACIÓN DE LAS
PARTÍCULAS
• Y LAS DISOLUCIONES: CUANDO LAS SUSTANCIAS SE DISUELVEN EN OTRAS
CAMBIOS QUÍMICOS
• PROCESOS IRREVERSIBLES QUE EXPERIMENTA LA MATERIA,
• SE FORMA NUEVOS PRODUCTOS Y NO VUELVE A SER LA MISMA.
• PASA DE UN ESTADO INICIAL A UNO FINAL. UNA TRANSFORMACIÓN QUÍMICA PRODUCE UNA
REACCIÓN QUÍMICA.
REACCIONES QUÍMICAS
• UNA REACCIÓN QUÍMICA ES UN PROCESO POR EL CUAL UNA O MÁS SUSTANCIAS LLAMADAS
REACTIVOS, SE TRANSFORMAN EN OTRA U OTRAS SUSTANCIAS CON PROPIEDADES CARACTERÍSTICAS
DIFERENTES LLAMADAS PRODUCTOS.
REACCIÓN QUÍMICA
SUSTANCIAS INICIALES SUSTANCIAS FINALES (REACTIVOS)
(PRODUCTOS)
• SEGÚN DALTON, LA REACCIÓN QUÍMICA ES UNA REORDENACIÓN Y REAGRUPACIÓN DE ÁTOMOS DE
LAS SUSTANCIAS INICIALES (REACTIVOS) PARA ORIGINAR SUSTANCIAS DIFERENTES (PRODUCTOS).
EJEMPLO
REACTIVOS PRODUCTOS
4 FE + 3 O2 2 FE2 O3
HIERRO + OXIGENO ÓXIDO DE HIERRO
REORDENACIÓN Y REAGRUPACIÓN DE ÁTOMOS
ACTIVIDAD
• INGRESA AL SIGUIENTE ENLACE Y REALIZA LA ACTIVIDAD SOBRE CLASIFICACION DE CAMBIOS
QUIMICOS Y FISICOS: https://forms.gle/thwtgn5fet3qbwdd9
• ESCRIBE EN TU CUADERNO 5 REACCIONES QUE OCURRAN A TU ALREDEDOR

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CLASE 6 REPASO Y INTRO REACCIONES.pdf

  • 2.
  • 3. ESTADOS DE LA MATERIA
  • 4. CAMBIOS FÍSICOS • AFECTAN LA FORMA MÁS NO LA COMPOSICIÓN DE LA MATERIA. • SE MANTIENE LA IDENTIDAD DE CADA SUSTANCIA Y POR LO TANTO, NO SE FORMAN SUSTANCIAS NUEVAS. • PODEMOS ENCONTRAR LOS CAMBIOS DE ESTADO: UNA MODIFICACIÓN EN LA ORGANIZACIÓN DE LAS PARTÍCULAS • Y LAS DISOLUCIONES: CUANDO LAS SUSTANCIAS SE DISUELVEN EN OTRAS
  • 5. CAMBIOS QUÍMICOS • PROCESOS IRREVERSIBLES QUE EXPERIMENTA LA MATERIA, • SE FORMA NUEVOS PRODUCTOS Y NO VUELVE A SER LA MISMA. • PASA DE UN ESTADO INICIAL A UNO FINAL. UNA TRANSFORMACIÓN QUÍMICA PRODUCE UNA REACCIÓN QUÍMICA.
  • 6.
  • 7. REACCIONES QUÍMICAS • UNA REACCIÓN QUÍMICA ES UN PROCESO POR EL CUAL UNA O MÁS SUSTANCIAS LLAMADAS REACTIVOS, SE TRANSFORMAN EN OTRA U OTRAS SUSTANCIAS CON PROPIEDADES CARACTERÍSTICAS DIFERENTES LLAMADAS PRODUCTOS. REACCIÓN QUÍMICA SUSTANCIAS INICIALES SUSTANCIAS FINALES (REACTIVOS) (PRODUCTOS) • SEGÚN DALTON, LA REACCIÓN QUÍMICA ES UNA REORDENACIÓN Y REAGRUPACIÓN DE ÁTOMOS DE LAS SUSTANCIAS INICIALES (REACTIVOS) PARA ORIGINAR SUSTANCIAS DIFERENTES (PRODUCTOS).
  • 8. EJEMPLO REACTIVOS PRODUCTOS 4 FE + 3 O2 2 FE2 O3 HIERRO + OXIGENO ÓXIDO DE HIERRO REORDENACIÓN Y REAGRUPACIÓN DE ÁTOMOS
  • 9. ACTIVIDAD • INGRESA AL SIGUIENTE ENLACE Y REALIZA LA ACTIVIDAD SOBRE CLASIFICACION DE CAMBIOS QUIMICOS Y FISICOS: https://forms.gle/thwtgn5fet3qbwdd9 • ESCRIBE EN TU CUADERNO 5 REACCIONES QUE OCURRAN A TU ALREDEDOR