ECHS Chemistry Unit 12 Vocab

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21 Terms

1

Agitation

the act of tirring, shaking, or mixing

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2

Aqueous

a solution that has a substance dissolved in water

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3

Colloid

a heterogeneous mixture containing particles that are between 1 nm and 100 nm in diameter

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4

Concentrated

solutions containing a high concentration of solute

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5

Dilute

a solution containing a low concentration of solute

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6

Homogeneous

a mixture having unvaried amounts when sampled; separate physically

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7

Ionization

the splitting of ionic compound into their components when dissolved in water

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8

Molarity

the measure in moles per liter of a solution

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9

Saturated

a solution where the max amount of solute has been reached. Equilibrium

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10

Solubility

the ability of a given substance, the solute, to dissolve in a solvent

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11

Solubility curve

a graph showing the dependence of solubility on temperature

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12

Solute

the substance being dissolved

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13

Solution

a homogeneous mixture formed when dissolving a solute in a solvent

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14

Solvation

the act of dissolving

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15

Solvent

the dissolving medium

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16

Supersaturated

a solution where the max amount has been surpassed and crytals begin to form

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17

Surface tension

the inward force or pull that tends to minimize the surface area of a liquid

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18

Surfactant

the wetting agent such as soap or detergent that decreases the surface tension

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19

Suspension

mixtures from which particles settle out upon standing and the average particle size is greater than 100 nm in diameter

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20

Tyndall effect

the phenomenon observed when a beam of light passed through a colloid or suspension

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21

Unsaturated

a solution where the concentration is low and is capable of dissolving more solute

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