seperation techniques

Question 1

what is a mixture?

Answer 1

two or more substances that are not chemically combined

Question 2

what is a pure substance?

Answer 2

made up of one single element or compound

Question 3

what is used to separate insoluble solid particles from liquids?

Answer 3

filtration

Question 4

what method can separate a solid that sublime from one that does not?

Answer 4

sublimation

Question 5

what can be used to separate magnetic substances from a non-magnetic substance?

Answer 5

a magnet

Question 6

what method can separate a pure solvent from a solution?

Answer 6

simple distillaiton

Question 7

what can be used to separate immiscible liquids?

Answer 7

separating funnel

Question 8

what method is used to separate a mixture of miscible liquids with different boiling points?

Answer 8

fractional distillation

Question 9

what method is used to separate two or more components that dissolve in the same solvent?

Answer 9

chromatography

Question 10

what are the uses of chromatography?

Answer 10

separate components in a sample + identify components in food substances + determining whether a substance is pure

Question 11

what is the difference between a pure/impure substance?

Answer 11

pure substances have exact and constant melting/boiling point