November Test 2020 Flashcards
Crystallisation separates a… and what is lost?
Solid solute from a solution. Solvent is lost
Filtration separates a…
Insoluble solid from soluble solid within a solution
Simple Distillation separates a…
Solid solute and its solvent from within a solution. Both kept
Fractional Distillation separates a…
2 or more miscible liquids by the boiling points lowest to highest.
What does crystallisation look like?
Heat under a beaker with boiling water then an evaporating basin
What does Filtration looks like?
Conical Flask with a filter funnel and paper with a mixture poured in
Name all the 5 types of separation for mixtures.
Chromatography, crystallisation, filtration, simple and fractional distillation.
What is a Mixture
(2pts)
2 or more elements or compounds not chemically combined together
Chemical properties are unchanged
Rf value =
Distance moved by substance
—-—————————————-
Distance moved by solvent
What is chromotrography used for?
Separates mixtures and gives information to identify substances
Why do we use pencil for the starting line in chromatography?
If pen was used: bleed, ruin results,
3 states of matter
Solid
Liquid
Gas
Melting point =
Freezing and melting solid/liquid
Boiling point =
Condensing + boiling Liquid/gas
What does the nature of the states depend on?
Type of bonding and structure of the substance
