2.1 Pure Substances and Mixtures

A ​ (a)   substance is made up of ​ (b)   kind of matter and has ​ (c)   properties

• pure
• one
• unique

An element is made up of one kind of (a)  

A compound is a chemical combination of d (a)   elements.

This is called the periodic table of e (a)   because they are are pure substances

Organize these options into the right categories

Groups:

(a) Element

,

(b) Compound

,

(c) Homogeneous Mixture

,

(d) Heterogeneous Mixture

• Coffee

• Pizza

• oxygen

• Sea Water

• Air

• water (H2O)

• gold

• Muddy Water

• carbon dioxide (CO2)

• Trail Mix

Match the 4 different types of mixtures

• Cloudy mixture /not easily separated

• Homogenous

• Different substances are visible

• Suspension

• Different substances are not visible

• Heterogenous

• Cloudy mixture / easily separated

• Colloid

Match the examples of the 4 different types of mixtures.

• Suspension

• 
• Heterogenous

• 
• Colloid

• 
• Homogenous

• 

Paper chromatography is a​ (a)   to determine if a ​ (b)   is a ​ (c)   substance or a​ (d)  

• test
• liquid
• pure
• solution

In paper chromatography, a pure substance will move up a s (a)   level. It shows ONE dot.

In paper chromatography, a solution will show different substances moving up to different l (a)   . It will show more than one dot.