Pure Substances and Mixtures

Pure Substances and Mixtures

by Mary Ty

​Sci-Drill

Poll

Which of the following DOES NOT belong to the group?

• sea water

• cloud

• vinegar

• sandwich

​Let's discuss...

​While it is true that all the four are matters, one does not belong to the group.

​

​Mixtures can be homogeneous or heterogeneous

​

Fill in the Blanks

​Mixtures has two components: solute and solvent

​Based on the illustration, how can you differentiate homogeneous mixture from a heterogeneous mixture?

Open Ended

Based on the illustration, differentiate a homogeneous and a heterogeneous mixture?

​Since solute and solvent particles are physically combined, do you think they can be separated physically too? Why or why not?

​Trivia: Crude Oil is considered the black gold

​Crude oil is a mixture

of comparatively volatile liquid

hydrocarbons (compounds

composed mainly of hydrogen

and carbon), though it also

contains some nitrogen, sulfur,

and oxygen. Those elements

form a large variety of complex

molecular structures, some of

which cannot be readily identified.

Open Ended

How do you think are the components of crude oil be separated?

What is the importance of separating the components?

​Methods of Separating Mixtures

​Based on your research, cite one method.

​Filtration

​It is the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles.

​https://www.brittanica.com

​Decantation

​It is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as suspension.