Classification Of Matter

Question 1

Define the pure substance, elements

Answer 1

• Identical Atoms
• Homogeneous
• Examples are copper sulphur and tin

Question 2

Define the pure substance, compounds

Answer 2

• Identical molecules which are two or more elements chemically joined together
• Homogenous
• Examples are Quartz and table salt

Question 3

Define mixtures

Answer 3

• Made up of a combination of pure substances

- Mixtures have variable composition

Question 4

Define the mixture, solutions

Answer 4

• Uniform appearance
• Particles dissolved
• Homogeneous
• Example is Kool-Aid

Question 5

define the mixture, suspensions or colloids

Answer 5

• Shaken mixture because particles are suspended
• Uniform appearance
• Heterogenous
• Example orange juice or smoothie

Question 6

Define the mixture, Mechanical mixtures

Answer 6

– Different particles are both visible
– Non-uniform
– Heterogenous
– Examples cereal Dirt or trail Mix

Question 7

Define pure substances

Answer 7

• They are made up of one type of matter or particle

- Pure substances have constant composition