Chemistry Form 3

Form 3 CHEMISTRY Trinity Term                                                    May 11-15

Teacher: Leon Abel                        My e-mail: leonabel8@gmail.com

Week 4 Topic: Mixtures and Separations – Read carefully, then use your notes and/or other resource materials to answer the questions

1.     Copper is described as an element. What does this tell us about copper?

2.     What is a compound?

3.     Give TWO differences between pure substances and mixtures.

4.     What makes a mixture different to a compound?

5.     What is the difference between a homogeneous mixture and a heterogeneous mixture?

6.     How does the particle size of:

a.      a solution compare with that of a suspension

b.     a suspension compare with that of a colloid?

7.     Which of the following mixture types, solutions, suspensions and colloids:

a.      does not transmit light?

b.     can be separated by filtration?

c.      will not settle out after standing?