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Chapter 2.2 Flashcards

(15 cards)

1
Q

How does the structure of water contribute to its unique properties

A

Because it’s polar it can form multiple hydrogen bonds

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2
Q

How does water’s polarity influence its properties as a solvent

A

Gives it the ability to dissolve ionic compounds and other polar molecules

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3
Q

Why is it important for cells to buffer solutions against rapid changes in pH

A

So homeostasis can be maintained

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4
Q

Hydrogyen bond

A

Weak attraction between hydrogyen and another atom

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5
Q

Cohesion

A

Attraction between molecules of different substances

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6
Q

Mixture

A

A material composed of 2+ elements or compounds that are physically mixed but not chemically combined

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7
Q

Solute

A

Substance disolved

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8
Q

Solvent

A

Substance solute dissolved in

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9
Q

Solution

A

Mixture-everything distributed evenly

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10
Q

Solute+solvent=

A

Solution

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11
Q

Suspension

A

Mixture of water and non dissolved material

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12
Q

pH scale

A

Scale with values from 0-14 used to measure H+ ions in a solution
0-7=acidic
7=neutral
7-14=basic

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13
Q

Acid

A

Any compound to at releases H+ ions in a solution

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14
Q

Base

A

A compound that produces hydroxide (OH-) ions in a solution

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15
Q

Buffer

A

A compound that prevents sharp sudden changes in pH

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