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Biology > Unit 2 Vocab - Properties of Water > Flashcards

Unit 2 Vocab - Properties of Water Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Equal sharing of the valence electrons

A

Nonpolar covalent bond

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2
Q

Unequal sharing of the valence electrons

A

Polar covalent bond

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3
Q

A type of chemical bond in which a hydrogen atom has a weak bond with electronegative atoms

A

Hydrogen bond

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4
Q

Having a strong affinity for water

A

Hydrophilic

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5
Q

Having little or no affinity for water

A

Hydrophobic

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6
Q

A force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface

A

Surface tension

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7
Q

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius

A

Specific heat

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8
Q

The amount of heat absorbed by a liquid at its boiling point that completely converts the material to gas

A

Heat of vaporization

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9
Q

The condition where there is opposing physical properties at differing points, especial magnetic poles or electric charge

A

Polarity

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10
Q

The molecular force between particles within a substance that acts to unite them

A

Cohesion

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11
Q

The molecular force of attraction within a substance to a completely different substance

A

Adhesion

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12
Q

A uniform mixture of one or more solutes dissolved in a solvent

A

Solution

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13
Q

A material composed of 2 or more elements or compounds that are physically mixed together but not chemically combined (not uniform)

A

Mixture

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14
Q

A substance that is a mixture of water and non-dissolved material

A

Suspension

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15
Q

The substance dissolved in a given solution

A

Solute

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16
Q

The substance that is responsible for dissolving a solute

A

Solvent

17
Q

Provides a measurable scale of hydrogen protons in a solution, ranges from 0-14 to describe the acidity or alkalinity of a solution

A

pH Scale

18
Q

The tendency of a system, especially that of higher animals, to maintain internal stability because of coordinated responses resulting from a stimulus

A

Homeostasis

19
Q

Proton donor, forms H+ ions in a solution

A

Acid

20
Q

Proton acceptor, forms OH- ions in a solution

A

Base

21
Q

A compound that is added to a system to resist changes in pH

A

Buffer

22
Q

A hydrogen atom containing no electrons, H+

A

Hydrogen proton

23
Q

An ion composed of O and H, OH-

A

Hydroxide ion

Biology (4 decks)

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