Water Distributation and Properties Flashcards

1
Q

How much of the earth’s surface is covered in water

A

70%

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2
Q

Where is the majority of the water of earth stored

A

the ocean

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3
Q

What percentage of water is available for humans to consume

A

3%

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4
Q

How is the structure of a water molecule related to unique properties

A

Water’s structure is what creates all of it’s unique properties.

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5
Q

What is a water molcules covalent bond

A

H-O
I
H

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6
Q

Hyrdrogen bonding between water molecules

A

Draw a big circle with an O in it with a - and draw two smaller circles around the O and put the letter H in them. Then, put a + next to it.

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7
Q

Oppositely charged regions

A

Polarity

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8
Q

slight negative

A

Oxyegn

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9
Q

slight positive

A

Hydrogen

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10
Q

attraction between the slightly positive end and slightly negative end of different molecules.

A

Hydrogen bonding

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11
Q

an attraction between molecules of the same substance.

A

Cohesion

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12
Q

Is the caused by cohesion between water molecules along the surface.
Makes the water act like there is an elastic membrane across the surface

A

Surface Tension

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13
Q

an attraction between molecules of different substances.

A

Adhesion

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14
Q

Water is very ________

A

cohesive

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15
Q

Water travels against the
direction of gravity through
the process of adhesion to
the walls of it’s “container”.

A

Capilary action

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16
Q

_________ is stronger then cohesion

A

adhesion

17
Q

Water’s ______ allows it to dissolve more substances than any other liquid!!

A

polarity

18
Q

Amount of heat it takes to raise the temperature of 1 gram of a substance 1 degree celsius.

A

specific heat

19
Q

Waters specific heat is very

A

high

20
Q

Why is waters specific heat important for all forms of life

A

Aquatic animals don’t have to worry about their homes heating up too fast and killing them and Human bodies are about 75% water. Our body temperatures don’t fluctuate very fast! If they did….we would die!

21
Q

How can water travel against gravity

A

capilary action

22
Q

What property of water makes a surface tension

A

Cohesion

23
Q

Water falling as raindrops is an example of

A

cohesion

24
Q

capilary action is anexample of

A

adhesion and cohesion

25
Q

water regulating the earths temperature is an example of

A

specific heat

26
Q

Paper towels attract water

A

adhesion

27
Q

Why does water have so many unique properties

A

Polar covalent bonds