classification of matter and mixtures -...
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OBJECTIVES
SWBAT classify a mixture as a suspension, colloidor solution.
SWBAT identify the properties of homogeneousand heterogeneous mixtures.
CLASSIFYING MATTER CONCEPT MAP
Today we will create concept maps. A concept map helps us organize our information we review in class.
MATTER
Objects that take up space and have mass.
Everything in the universe is made up of MATTER.
Matter cannot not be created or destroyed by any chemical or physical process
PURE SUBSTANCES
Compounds
Chemical combinations of two or more atoms ex: NaCl, MgCl2, HCl
Elements
Made up of atoms, cannot be further separated by physical or chemical means ex: sodium, potassium
Substances that are made of only one type of atom or molecule.
MIXTURES
Heterogeneous
Mixture where the substances are not evenly distributed.
They usually involve a mixture of a solid in a solid.
Homogeneous
Mixture where the materials are evenly distributed.
Usually involves a mixture of two or more liquids, gases or a solid that dissolves in a liquid
Salad Soup Taco
Kool-Aid Iron Shavings
A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs
SUSPENSION
This type of mixture will create different layers for each substance in the mixture.
Example:
A suspension is a heterogeneous mixture containing solid particles that are sufficiently large for sedimentation. Usually they must be larger than one micrometer.
Root Beer Float
Seperatory FunnelOrganic Chemistry
COLLOIDS
Has the ability to scatter light.
Colloids include gels, sols, and emulsions; the particles do not settle and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
Example:
A type of heterogeneous mixture that consists of particles of one substance dispersed through a second substance.
Mayonnaise Fog Smog
SOLUTION
Particles, atoms, ions, or compounds that WILL NOT scatter light.
Solution have 2 parts a solvent and a solute.
Examples:
Water Clean Air Salt Water
A type of homogeneous mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
Matter
Pure Substances
Compounds Elements
Mixtures
Homogeneous
Solution
Heterogeneous
Colloid Suspension
CHECK FOR UNDERSTANDING
A B C ED
DESCRIPTION PARTICLE DIAGRAM
1. ELEMENT
2. COMPOUND
3. MIXTURE OF ELEMENTS
4. MIXTURE OF COMPOUNDS
5. MIXTURE OF ELEMENTS AND
COMPOUNDS
Match the particle diagrams above with the correct description.Remember each shape represents a different element
CHECK FOR UNDERSTANDING
Classify each type of matter using the classification system we just learned. Circle the correct answer in each column
MaterialPure Substance (PS) Element (E) or Compound (C)
Mixture (M) Homogeneous (Ho) or Heterogeneous (He)
Chicken Noodle Soup Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
Blood Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
Charcoal Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
Clay Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
Glass Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
Oxygen Pure substance | MixtureElement | Compound
Homogeneous | Heterogeneous
CONCEPT MAP ACTIVITY
Chemists study many thousands of natural substances from the earth's crust, the atmosphere, and the oceans, as well as synthetic substances produced in their laboratories. In order to simplify the task of learning about all of these different materials, scientists have developed classification schemes. How can different kinds of matter be classified to help scientists learn
about their properties?
What are the relationships between the categories and types of matter in the world?
How are compounds, elements, mixtures, and pure substances related to each other?
CONCEPT MAP ACTIVITY PG. 21IN THIS ACTIVITY YOU WILL CREATE A CONCEPT MAP THAT DIAGRAMS
THE RELATIONSHIPS AMONG THE FOLLOWING IDEAS:
Air
Carbon
Chocolate chip cookie
Compound
Element
Heterogeneous
Homogeneous
Mixture
Oxygen
Pure Water
Salt water
Sodium chloride
Soil
Solution
Pure Substance
Other AssignmentsClassifying Matter and Mixtures Worksheet (pg. 21)Complete the Active Chemistry Book Work (pg. 18-19)
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