Science -chapter 23(separating mixtures)

Descripción

Fichas sobre Science -chapter 23(separating mixtures), creado por aideen11winters el 07/05/2016.
aideen11winters
Fichas por aideen11winters, actualizado hace más de 1 año
aideen11winters
Creado por aideen11winters hace alrededor de 8 años
610
2

Resumen del Recurso

Pregunta Respuesta
Separating mixtures.
Pure substances. A pure substance is one that contains only a single substance and no impurities. A pure substance is either an element or compound-it cannot be a mixture.
What is filtration? Filtration is a method of separating an insoluble solid from a liquid using a material that allows the liquid to pass through but not the solid.
Name some examples of filtration. 1. Coffee filters. 2. Oil and air filters. 3. Surgical masks. 4. Kitchen utensils
Experiment: to separate a mixture of water and soil using filtration. Result: the solid remaining on the filter paper is called residue. In this case the soil is the "residue". The clear liquid that passes through the filter paper is called filtrate. In this case the water is the "filtrate"
What is evaporation? Evaporation is the changing of a liquid to a gas.
What is condensation ? The process of changing a vapour back to a liquid.
What is a condenser? The apparatus which cools the vapour to a liquid. (Ließig condenser)
Paper chromatography Used to separate mixtures of substance in solution. The solvent in which the substances are dissolved are passed along a length of paper. The dissolved substances separate on the paper.
How chromatography works 1. Dyes that aren't very soluble in the water come out of solution early on and appear as a colour near the bottom of the filter paper. Dyes that are very soluble in the water stay in solution and get carried further up the paper. The paper showing the separated colours is called a CHROMATOGRAM.
Uses of paper chromatography. 1. Art 2. Forensic science 3. Food colourings
Mostrar resumen completo Ocultar resumen completo

Similar

CÁLCULOS con [ 3 · 5 · 7 ]
JL Cadenas
PMP Prep
jorgeat
INGLES PRONOMBRES 73
Pedro Fernández
CARBOHIDRATOS
Andrea Lopez Riv
Preparacion TOEFL page 382
Jorge Silva Granados
Ciclo Menstrual
Juno Enyell's M
Determinantes
Marina González
Límites
Cesar Morgado
Prueba de Aptitud Académica - Lenguaje
enriquepor_2
=ARTE=...
JL Cadenas
LOS MOMENTOS DEL PROCESO DE APRENDIZAJE
Alejandro Correa