Post on 01-Nov-2014
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Prepared by: Monares, Mayjyn G.
MIXTURES
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Mixture
Homogeneous
Heterogeneous
Colloid Solution
Suspension
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WHAT IS A MIXTURE?
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WHAT ARE THE TYPES OF MIXTURE?
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WHAT IS A MIXTURE?
a combination of two or more substances that are not chemically united and do not exist in fixed proportions to each other.
can be physically separated into pure compounds or elements.
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may exhibit a changing set of physical properties. most natural substances.
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Mixtures are classified into two on basis of
the solvents and solutes:1. homogenous mixture
2. heterogeneous mixture
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are those in which the solute and solvent are not seen as two separate phases but as one continuous phase.
HOMOGENOUS MIXTURE
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Salt in Water
Examples:
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Coffee
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Types:
solution with intermediate particular size between a solution and a suspension.
may be seen in a beam of light such as dust in air in a “shaft” of sunlight.
Colloid
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Milk
Examples:
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Butter
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a mixture of two or more substances in a single phase.
at least two substances must be mixed in order to have a solution.
Solutions
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Examples:
Beer Wine
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“hetero” means difference consists of visibly different substances or phases. three phases or states of matter are gas, liquid and solid.
HETEROGENEOUS MIXTURE
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Example
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mixture of larger particles.
these particles are visible and will settle out on standing.
Types:
Suspension
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Examples:
Tomato Juice
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Sand
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Quiz
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Identify withier it is homogeneous or heterogeneous mixture and classify the type:1. Blood
2. Sugar solution when sugar is completely dissolved.
3. Mixture of alcohol & water4. A glass of orange juice 5. salty water (where the salt is
completely dissolved)
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6. brewed tea or coffee 7. soapy water 8. a dilute solution
of hydrochloric acid 9. hard alcohol 10. wine 11. Oil & water.12. Soil sample13. sandy water
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14. Chicken soup15. Sand in desert16. Orange juice with pulp in it17. Beer18. Wine19. Milk20. starch
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Assignment: On a 1 whole sheet of paper answer the following:
1. Give at least 5 examples of heterogeneous and homogeneous mixture.
2. Differentiate ionic and covalent bond.
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Thank You for Listening!