Chapter 3 - Water and Life

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hydrogen bonds

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Chemistry

11 Terms

1

hydrogen bonds

As water evaporates from a leaf, ________ cause water molecules leaving the veins to tug on molecules farther down, and the upward pull is carried all the way to the roots via the water- conducting cells.

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2

Cohesion

________ caused by hydrogen bonding aids in the movement of water and dissolved nutrients in plants against gravity.

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3

Temperature

________ indicates the average kinetic energy of molecules in a body of matter independent of volume, whereas thermal energy reflects total kinetic energy and hence relies on the volume of the substance.

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4

Atoms

________ and molecules have kinetic energy because they are always moving, but not always in the same direction.

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5

Kinetic energy

________, or the energy of motion, is present in everything that moves.

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6

ratio of ice

The ________ to liquid water is shifting as the Earth warms due to climate change.

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7

Thermal energy

________ is the kinetic energy associated with the random movement of atoms or molecules.

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8

hydrogen bonds

The ________ keep the material together as a whole, a process known as cohesion.

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9

hydrogen bonding

Water's ________ to the molecules of cell walls helps to counteract gravity's downward pull.

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10

hydrogen bond

A(n) ________ holds the two molecules together as shown in the image attached.

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11

hydrogen bonding

Because of ________, water molecules remain near to one another.

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