Properties of Water Quiz

What property of water allows it to stick to other water molecules?

• Polarity

• Cohesive property

• Surface tension

• Hydrogen bonding

Why is water considered a polar molecule?

• Because it has a uniform charge distribution

• Because it is made up of two hydrogen atoms and one oxygen atom

• Because one side of the water molecule has a slightly positive charge and the other side has a slightly negative charge

• Because it can dissolve nonpolar O2 molecules

What is the result of water's polarity?

• It causes water to have a high boiling point

• It allows water molecules to attract each other, forming hydrogen bonds

• It makes water non-cohesive

• It prevents water from forming droplets

What can be observed due to the cohesive property of water on a blade of grass?

• A water droplet

• A nonpolar O2 molecule

• A hydrogen bond

• A polar molecule

What unique properties does water have due to hydrogen bonds?

• Ability to dissolve many substances and low heat capacity

• Ability to dissolve few substances and high heat capacity

• Ability to dissolve many substances and high heat capacity

• Ability to dissolve no substances and low heat capacity

Why is water referred to as a universal solvent?

• It can dissolve more substances than any other liquid

• It can dissolve no substances

• It can dissolve fewer substances than other liquids

• It is not a solvent

How does the high specific heat capacity of water benefit aquatic ecosystems?

• It allows for rapid temperature changes, protecting aquatic life.

• It prevents water from boiling at lower temperatures.

• It helps regulate the temperature, providing a stable environment.

• It increases the solubility of gases in water.

What role does water's surface tension play in the environment?

• It prevents aquatic plants from absorbing water.

• It allows insects to walk on the surface of water.

• It decreases the boiling point of water.

• It facilitates the sinking of small objects in water.

Why does ice float in liquid water?

• Because ice is denser than liquid water.

• Because the molecular structure of ice is less dense than that of liquid water.

• Because ice has a higher specific heat capacity than liquid water.

• Because the cohesive property of water is weaker in solid form.

What kind of molecule is water considered to be?

• Polar molecule

• Square molecule

• Triangle molecule

• Hexagon molecule