Properties of Water

Question 1

Water molecules are polar because the

Revolt · Accepted Answer

water molecule has a bent shape.

Question 2

Which is a characteristic of the polar water molecule?

Revolt · Accepted Answer

a tetrahedral electron domain geometry with covalently bonded atoms

Question 3

Which is the best example of water regulating an organism’s body temperature?

Revolt · Accepted Answer

a jogger sweating after a run

Question 4

Which example best shows that the chemistry of water is helpful to plants?

Revolt · Accepted Answer

Water’s polarity causes cohesion that pulls other water molecules up through a plant.

Question 5

Which statement is true about the electrons in each polar bond of a water molecule?

Revolt · Accepted Answer

They are more attracted by the oxygen atom than by the hydrogen atom.

Question 6

Which best explains why water is able to “stick” to the side of glass?

Revolt · Accepted Answer

Strong adhesive forces exist between glass and the water molecules.

Question 7

Which best explains why an iceberg floats?

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Water expands and becomes less dense when it freezes.

Question 8

Which best explains why water has a high specific heat?

Revolt · Accepted Answer

Hydrogen bonds increase the amount of energy that is required for the temperature to change.

Question 9

Which is a cause of polarity in water molecules?

Revolt · Accepted Answer

high electronegativity difference between oxygen and hydrogen

Question 10

Which statement best describes how water’s properties relate to its functions in a human’s biological systems?

Revolt · Accepted Answer

Water absorbs a lot of energy from the skin due to its high specific heat.

Properties of Water Answers