Seperating Techniques And Mixtures Flashcards
What do you call a substance made of only one type of atom?
Element
What is a molecule?
Two or more atoms bonded together.
What is a compound?
A substance made up of two or more elements chemically combined, in fixed proportions.
What is a polymer?
A large molecule made of repeating smaller units.
In the solution of salt in water, identify the solute and solvent.
Solute: Salt, Solvent: Water
Define a pure substance.
A substance made of only one type of element or compound.
Give two examples of mixtures.
Air, sea water
What method is used to separate an insoluble solid from a liquid?
Filtration
What method is used to separate a dissolved solid from a solution?
Evaporation
What method is used to separate liquids with different boiling points?
Distillation
Name three major pieces of equipment in simple distillation.
- Round bottom flask
- Condenser
- Thermometer
What is chromatography used for?
Separating different coloured substances in a mixture.
