Properties of Water Flashcards

1
Q

percentage of water in body

A

50-75%

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2
Q

without it, water will be just a gas in room temp.

A

hydrogen

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3
Q

water’s unique properties results from

A

intermolecular force - hydrogen bond

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4
Q

5 properties of water

A

water as a solvent, cohesion/adhesion, density, specific heat capacity, heat vaporization

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5
Q

Water molecules are also attracted to other polar molecules and to ions.

A

water as a solvent

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6
Q

hydrophilic comes from

A

hydro - water
philic - loving

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7
Q

hydrophobic comes from

A

hydro - water
phobic - fearing

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8
Q

Attraction of other molecule of the same kind

A

cohesion

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9
Q

Water molecules stick to each other.This is due to the hydrogen bonds among the molecules

A

cohesion

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10
Q

Water molecules stick to each other.

This is due to the

A

hydrogen bond

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11
Q

Attraction of other molecules of the different kind

A

adhesion

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12
Q

Water molecules stick to other substances

A

adhesion

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13
Q

Most plants have adapted to take advantage of water’s adhesion that helps move water from the roots to the leaves. this process is called?

A

capillary action

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14
Q

This can also be seen as blood moves through our capillaries, carrying nutrients to each cell within our body.

A

capillary action

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15
Q

the mass per unit of a substance

A

density

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16
Q

density of water & ice

A

water - 1g/cm³
ice - 0.9168 g/cm³

17
Q

why does ice have lower density

A

due to hydrogen bonds oriented as it freezes

18
Q

which one floats? water or ice caps? why

A

ice caps - less dense

19
Q

the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius.

A

specific heat capacity

20
Q

the specific heat capacity of water is how many times greater than the sand

A

5 times

21
Q

which does heat faster? metal or water? why

A

metal - less energy to heat it up

22
Q

explain heat vaporization

A

water has high vaporization – hydrogen needs to break off as a gas first at room temp.