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Separate Mixture
Science Junior Cert
Question | Answer |
---|---|
What consists of two or more different substances mingled together but not chemically combined | A mixture |
Name two examples of a mixture | Air, Seawater |
Are mixtures, easy or difficult to separate | Easy |
Are Compounds easy or difficult to separate | Difficult |
How many substances make up a mixture | two or more |
How many substances are present in a compound | One |
Are the properties of a compound very different to the properties of the elements they are made up of | Yes |
What do you call a change where nothing new is made | Physical change |
What do you call a change where something new is made | Chemical change |
Nitrogen, oxygen, carbon dioxide and water vapour are all present in what mixture | Air |
What is the name of the method used to separate insoluble solids from a liquid e.g sand and water | Filtration |
What is the name of the method used to separate soluble soilds from a solution e.g salt in water | Evaporation |
What is the name of the method used to separate a mixture of dissolved subctances in a solution e.g inks in a dye | Chromatography |
What is the name of the method used to separate two liquids with different boiling points e.g. alcohol and water | Distillation |
What is the name given to the condensor used in distillation | Liebig Condensor |
How would you separate iron filings and wood shavings | Use a magnet |