Water Properties

Capillary action is the result of adhesion. Which aspect of water is responsible for this?

• Nonpolar covalent bonds that enable water to dissolve other substances
  

• Polar covalent bonds that join molecules of water to other substances

• Hydrogen bonds between water and another substance

• Ionic bonds that enable electrons to flow through water and into another substance

Answer explanation

Capillary action is the result of adhesion, which is due to hydrogen bonds between water and another substance.

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.

• Water has a high heat capacity.

• Water acts as a buffer.

• Water is non-polar.

Answer explanation

Water has a high heat capacity, which means it can absorb and release large amounts of heat without changing temperature quickly.

Attractions between water molecules are called

• Covalent bonds

• Ionic bonds

• Polar bonds

• Hydrogen bonds

Answer explanation

Attractions between water molecules are called hydrogen bonds, which are formed due to the partial positive charge on hydrogen atoms and the partial negative charge on oxygen atoms.

Which is NOT a unique property of water?

• Frozen water floats on liquid water.

• Water covers most of the Earth’s surface and retains a large amount of heat.

• Water molecules stick to each other through hydrogen bonds.

• Water cools very rapidly.

Answer explanation

The correct choice is 'Water cools very rapidly' because this is not a unique property of water. Water actually has a high specific heat capacity, meaning it cools slowly.

A solvent is...

• a substance into which the solute dissolves

• a compound being dissolved

• a substance that does not dissolve

• None of the above

Answer explanation

A solvent is a substance into which the solute dissolves, making it the correct choice among the options provided.

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Answer explanation

Water is a universal solvent because it dissolves most substances, making it capable of dissolving a wide range of materials due to its unique chemical properties.

When water molecules stick easily to other water molecules, this is called what?

• cohesion

• adhesion

• solution

• polar molecule

Answer explanation

When water molecules stick easily to other water molecules, it is called cohesion. This property allows water to form droplets and have a high surface tension.

What word describes when water is attracted to other substances?

• cohesion

• adhesion

• capillary action

• surface tension

Answer explanation

Adhesion is the word that describes when water is attracted to other substances, unlike cohesion which refers to water being attracted to itself.

What are two parts that make up a solution?

• solvent and solute

• concentration and dilation 

• non polar and polar

• solid, liquid, and gaseous  

Answer explanation

A solution is composed of a solvent, which dissolves the solute. Therefore, the two main parts of a solution are the solvent and the solute.

Solubility refers to the ____ of solute that can dissolve in a certain volume or mass of solvent, at a certain temperature.

• Volume

• Proportion

• Mass

• Particles

Answer explanation

Solubility refers to the mass of solute that can dissolve in a certain volume or mass of solvent, at a certain temperature, making 'Mass' the correct choice.