Methods of collection

Question 1

What is a mixture?

Answer 1

A mixture is made up of two or more substances that are not chemically combined together

Question 2

What is a pure substance?

Answer 2

A pure substance is made up of one element or compound

Question 3

Filtration is used to separate________solid from a liquid

Answer 3

insoluble

Question 4

Evaporation to dryness is used to obtain a _______ solid from a solution

Answer 4

soluble

Question 5

The soluble solid collected after heating is called_____

Answer 5

residue

Question 6

What method of collection is used to obtain a pure soluble solid from a solution?

Answer 6

Crystallisation

Question 7

Simple distillation is used to obtain a __________from a solution

Answer 7

pure solvent

Question 8

Paper Chromatography is used to separate _________

Answer 8

two or more components that dissolve in the same solvent

Question 9

Components in Paper chromatography separate due to a______

Answer 9

difference in solubilities

Question 10

Separation funnel is used to separate a mixture of _______ liquids with different density

Answer 10

immiscible

Question 11

Fractional distillation is used to separate a mixture of ______liquids with different boiling parts

Answer 11

miscible

Question 12

Chromatography, ______ and ______ can be used to determine the purity of a substance

Answer 12

melting and boiling points