Water Test Review

Why is water called the universal solvent?

• Because its polarity allows it to dissolve everything

• 
  Because its polarity allows it to dissolve salt

• Because its polarity allows it to dissolve many things

• Because its polarity causes surface tension

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

When liquid water freezes, it forms ice. What is the physical state of an ice cube?

• gas

• solid

• liquid

• plasma

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

• –10°C

• 20°C

• 90°C

• 120°C

A forecast for “wintry mix” indicates that vapor in the air will form both rain and snow. Which of these is a correct principle illustrated by this event?

• 
  There is little water in the atmosphere of Earth.

• Most water on Earth is found as vapor.

• Water exists in all three states on Earth.

• Water on Earth tends to form a solid over time.

The image of the water strider demonstrates which property of water?

• universal solvent

• capillary action

• specific heat

• surface tension

Ice molecules take up more volume than liquid water molecules. Which of these conditions occurs when water in a pond freezes?

• Water molecules solidify at the bottom and push the liquid water upward.

• Water molecules solidify near the surface and float on the liquid water.

• Water molecules break apart into solid oxygen and solid hydrogen.

• Water molecules form solids when they combine with dissolved minerals.

As shown in the diagram below, when water freezes in the cracks of rocks, ice wedging can occur.

• a tectonic process.

• 
  a depositional process.

• chemical weathering.

• mechanical (physical) weathering.

Which of the following is incorrect about the distribution of Earth's water?

• More than 97% of Earth's water is available for drinking.

• The majority of Earth's fresh water is trapped in ice.

• Earth's water can be found in the a variety of places including the ocean, the ground and the atmosphere.

  Earth's water can be found in the a variety of places including the ocean, the ground and the atmosphere.

• 
  Fresh water is unequally distributed throughout the Earth.

When water is changed from a liquid to a gas, what occurs?

• 
  The atoms lose electrons.

• A new compound is formed.

• Molecules spread farther apart.

• Hydrogen is separated from oxygen.