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28 Terms
1
Heterogenous mixtures
A combination of two or more pure substances in which each retains its individual properties
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Ex. of a Heterogenous Mixture
Orange Juice: The juice and the pulp are not blended perfectly
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3
What are two types of heterogenous mixtures?
Colloids and Suspensions
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4
Suspension
A mixture containing particles that settle out if left undisturbed.
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5
Example of a Suspension
Muddy water/lakes: Mud and rocks settle at the bottom and water is clear
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Colloid
A heterogenous mixture of intermediate-sized particles (between 1nm and 100nm in diameter) that are made of dispersed mediums and dispersion mediums (Basically mixtures that can’t be filtered out into separate solutions)
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Dispersion Medium
The most substance in a colloid mixture
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8
Tyndall effect
A phenomenon in which dispersed colloid particles scattered lights
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Colloids make what kind of movement?
Jerky random movements called Brownian motion. Results from collision’s of particles of the dispersion medium with the dispersed particles
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10
Homogenous mixtures
Also known as solutions; contain two or more substances called the solute and the solvent
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11
Solute
Substances that dissolve
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Solvent
The dissolving medium
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13
The Universal Solvent
Water
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14
Solution
A uniform mixture that contains solids, liquids, and gasses; also known as a homogenous mixture
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15
What does soluble mean?
Describes a substance that can be dissolved in a give solvent
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16
Example of soluble
Sugar is soluble in water
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17
What does insoluble mean?
A substance that does not dissolve in solvents
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18
Example of insoluble
Sand cannot dissolve in water
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19
Miscible
Two liquids can be soluble in each other
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20
Example of miscible liquids
Milk and water; Alcohol and Water
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Immiscible
Two substances that can be mixed together but separates shortly after
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22
Ex of Immiscible
Oil and Water
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23
Concentration
The measure of how much solute is dissolved in a specific amount of solvent and solution
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24
When something is concentrated it is?
A solution with a large amount of solute in comparison to solvent
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25
When something is diluted it is?
A solution with a large amount of solvent in comparison to solute
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