Mixtures

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MIXTURES

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Mixture

Homogeneous

Heterogeneous

Colloid Solution

Suspension







WHAT IS A MIXTURE?







WHAT ARE THE TYPES OF MIXTURE?







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.







may exhibit a changing set of physical properties. most natural substances.







Mixtures are classified into two on basis of

the solvents and solutes:1. homogenous mixture

2. heterogeneous mixture







are those in which the solute and solvent are not seen as two separate phases but as one continuous phase.

HOMOGENOUS MIXTURE







Salt in Water

Examples:







Coffee







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







Milk

Examples:







Butter







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







Examples:

Beer Wine







“hetero” means difference consists of visibly different substances or phases. three phases or states of matter are gas, liquid and solid.

HETEROGENEOUS MIXTURE







Example







mixture of larger particles.

these particles are visible and will settle out on standing.

Types:

Suspension







Examples:

Tomato Juice







Sand







Quiz







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)







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







14. Chicken soup15. Sand in desert16. Orange juice with pulp in it17. Beer18. Wine19. Milk20. starch







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.







Thank You for Listening!






Mixtures

Education

Transcript of Mixtures