Separating Mixtures

all the following are a characteristic of a pure substance except:

• they have a fixed and constant composition

• the components cannot be separated by physical means

• they have fixed and constant properties

• pure substances cannot be elements

what is an element?

• its made up of only 1 type of material

• its made of 2 or more substances

• the simplest form of matter

• it contains more than 1 type of atom bonded to each other

which is an example of a compound

• helium

• oxygen

• copper

• water

Which the best way to get salt from salty water?

• Filtration

• Simple Distillation

• Separating Funnel

• Evaporation

Select the facts about mixtures:

• their properties vary

• their composition varies

• can be only homogeneous

• the components can be separated by physical means.

In filtration, what name is used to describe the solid left in the filter paper.

• distillate

• filtrate

• residue

• particles

All the following are facts of a homogeneous mixture, except:

• the mixture is uniformed

• an example of a homogeneous mixture is a solution.

• the individual components cannot be distinguished from each other

• the mixture is not uniformed

Crude oil can be separated into several liquids that has different boiling points. What is the name of this process?

• Simple Distillation

• Crystallization

• Fractional Distillation

• Separating Funnel

Examples of a heterogeneous mixture:

• suspensions

• colloids

• solutions

• water

Facts of a solution is a is a:

• homogeneous mixture made of 2+ components

• an example is a sugar solution

• the components of a solution will settle