mixtures of matter. classification of matter
TRANSCRIPT
Mixtures of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Classification of Matter
Substance
Matter that has a uniform and unchanging composition
MixtureCombination of 2 or more pure
substances
They are physically mixed but, don’t react
Heterogeneous
Does not blend smoothly and individual substances remain distinct
Sand and water; orange juice; pizza
Homogeneous Mixture
Constant composition throughout
Homogenous Mixture - Is a single phase
AKA - Solution
Salt water
Two types of pure substances:
Elements
Compounds
Element:
A pure substance that cannot be separated into simpler substances
by chemical or physical means
Found on periodic table
91 naturally occurring, the rest man made
Compound:
Combination of two or more elements
1 Million compounds and 100,000 more found every year.
Water; hydrogen peroxide
Has mass and volume (s, l, g)
More than one type of matter
Uniform throughout (solutions)
Not uniform throughout
One type of matter
One type of atom
Two or more
elements
Separating Mixtures
Reverse of Mixing
Helps to understand matter
Use physical processes used to separate solutions
Filtration
-Technique that uses a porous barrier to separate a solid from a liquid.
-Separate heterogeneous mixtures composed of solids and liquids.
Distillation-Separation technique based on differences on boiling points.
-Separates a liquid from a liquid.
Crystallization
formation of pure solid particles from a solution
Chromatography
Separates on tendency of chemical to
travel.
Separation of Pure Substances
• Requires chemical means