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CHAPTER 2 MATTER AND CHANGE (PART 4) - Coggle Diagram
CHAPTER 2
MATTER AND CHANGE
(PART 4)
Mixture
def: a combination of two or more substances in any proportion.
a physical blend of two or more components, each of which retains its own identity and properties in the mixture
Mixture - combination of anything in any set of numbers
Compound - substance in a fixed proportion
Do NOT combine chemically to form a new substance
Phase
def: any part of a sample that has a uniform composition and properties
Homogenous Mixture
def: mixture in which the composition is uniform throughout the mixture.
Single phase
Oil
Water
Examples:
Milk
Kool-Aid
Dr. Pepper
Window Cleaner
Glue
Salt Water
Iced Tea
All solutions would be considered homogeneous.
Heterogeneous Mixture
def: mixture in which the composition is not uniform throughout the mixture
2 or more phases
Oil and Water
Examples:
Granite
Chex mix
Milk and Cereal
Bucket of Legos
M&M's
Salad
Vegetable Soup
Separating Mixture
(multiple phases)
Chromatography
separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates.
Example: Separating chromosomes in DNA
Distillation
method to separate mixtures comprised of two or more pure liquids.
Example: Extraction of gasoline from crude oil
Evaporation
technique used to separate out homogenous mixtures where there is one or more dissolved solids.
Example: water evaporates away leaving solid copper sulfate crystals behind.
Filtration
method used to separate out pure substances in mixtures comprised of particles some of which are large enough in size to be captured with a porous material.
Example: Removing salt from salt water to make fresh water