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Vodcast 1.2
Organizing Matter
Organizing MatterA. Several different methods – helps to
understand matterB. Based on physical and chemical observations
Organizing Matter - Mixtures
A. 2 or more parts of matter together
B. Each part keeps its own identity and characteristics
C. No chemical bonds form
D. May be easy to tell parts from each other or not
Organizing Matter - Heterogeneous
A. Not uniform in appearance – can see the different parts
B. Different parts spread out randomly, no organization
Organizing Matter - HomogeneousA. Uniform in appearance
– looks all the sameB. Parts are mixed evenly
and uniformly throughout , can’t tell one part from the other
C. Parts still have their own identity and characteristics
Organizing Matter - SolutionsA. Homogeneous mixtures
with very tiny particlesB. Solute – the part of the
mixture that dissolvesC. Solvent – causes the
solute to dissolveD. Solute and solvent do not
separate from each otherE. Solute and solvent keep
their own propertiesF. Do not bend light
Organizing Matter - ColloidsA. Heterogeneous mixtures B. Solute and solvent C. Solute particles are bigger
than those in solutions yet do not separate from the solvent particles
D. Solute particles are big enough to bend light (Tyndall effect)
Organizing Matter - Suspensions
A. Heterogeneous mixtures
B. Solute and solventC. Solute particles bigger
than colloid solutesD. Solute and solvent will
separate if not being stirred or mixed
E. Bend light
Organizing Matter – Pure Substances
ElementsA. Simplest form of matter;
cannot be broken down further
B. Each element is unique
CompoundsA. 2 or more elements
bonded together in a specific ratio
B. Compounds have different characteristics than their individual elements
A. Fixed compositionB. All parts of a pure substance have the same identity and characteristics
Other Organizations of MatterFor compoundsA. Organic: carbon based, carbon most importantB. Inorganic: no carbon, or carbon present but not most importantFor elementsC. Metal: good conductors of energy (esp. heat), malleable (forms
sheets/foils), ductile(forms wires), shiny, silver, gold, or copper in color
D. Nonmetal: good insulators (do not conduct energy), never malleable, never ductile, never shiny, can have color (but never silver, gold, or copper) or be colorless
E. Metalloid: some metal properties, some nonmetal properties
Matter
Mixtures Pure Substances
Heterogeneous
Compound
ElementHomogeneous
Solution
Suspensions
Colloids
Organic
Inorganic
Metals
Nonmetals
Metalloids
Matter
Heterogeneous Homogeneous
Solution Pure Substance
Element Compound
Colloids
Suspensions
Metals
Metalloids
NonmetalsOrganic Inorganic