Water Unit Review 1

Lucy made lemonade by adding sugar and lemon juice to a glass of water. Which property of water makes it possible for Lucy to make the lemonade?

• Water is available in most places.

• Water is a good solute in many solvents.

• Water is a good solvent for many substances.

• Water has a high boiling point compared to many other substances.

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6.6.a

Why is water known as a ‘universal solvent’?

• Water is easily available all over the world.

• Many different kinds of substances dissolve in water.

• Every substance will dissolve in water under the right conditions.

• Water can exist as solid, liquid, or gas under normal conditions on Earth.

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6.6.a

Which property of water allows it to dissolve many different substances?

• It is a polar molecule.

• It contains hydrogen atoms.

• It has a high melting point.

• It has a low density.

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6.6.b

Water has many unique chemical properties. Which property of water makes water a good solvent of crystalline salts?

• strong polarity

• weak conductivity

• high viscosity

• low pH

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6.6.b

The structure of water allows it to dissolve many minerals. Which of these most accurately represents the structure of water?

• 
• 
• 
• 

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6.6.b

Which of these is a property of water that allows it to transport materials through Earth's systems?

• It expands as it solidifies.

• It is transparent.

• It dissolves many substances.

• It is a compound.

One characteristic that is unique to water is that it

• has a low specific heat.

• can be changed from a liquid to a solid.

• dissolves very few substances.

• exists naturally in three states on Earth.

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6.6.a

Which word best describes the physical state of an ice cube?

• gas

• solid

• liquid

• plasma

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6.6.b

Choose all of the statements that correctly describe properties of water.

• Liquid water holds its shape.

• Water changes to a gas as it boils.

• Ice becomes a liquid when it freezes.

• Water changes to a solid when it freezes.

• Solid ice changes shape with its container.

Tags

6.6.a

At what temperature is water most likely to be in vapor form?

• ~10°C

• 20°C

• 90°C

• 120°C

Tags

6.6.b