Properties of Water Study Guide

Water is one of the most unique molecules known and also one of the most important to biological system.

• True

• False

Which of the following is NOT a property of water?

• cohesive

• adhesive

• acidic pH

• universal solvent

How do cohesive forces and high surface tension relate to each other for water?

• Water is cohesive – water molecules tend to stick together, owing to its HIGH surface tension

• Water is NOT cohesive – water molecules tend to stick together, owing to its HIGH surface tension

• Water is cohesive – water molecules REPEL each other, owing to its HIGH surface tension

• Water is NOT cohesive – water molecules REPEL each, owing to its LOW surface tension

Water is excellent at dissolving charged (polar) substances such as salts, sugars and other

• True

• False

Water's ability to dissolve many things makes it a

• Ineffective Solvent

• galaxy solvent

• Universal and Versatile solvent

• Acidic solvent

Water __________________ changes in temperature.

• performs

• easily accepts

• does not perform

• resists

Because water resists temperature changes, this means it

• has a high specific heat capacity

• has a low specific heat capacity

• has a medium specific heat capacity

• has a average specific heat capacity

Why does solid ice float on water?

• only water becomes more dense as it solidifies

• only water becomes less dense as it solidifies

• ice is more acidic as it solidifies

• water becomes more basic as it solidifies

The elements that make up water are

• hydrogen and oxyclean

• hydrogen and oxygen

• helium and oxygen

• hydrogen and sulfur

Molecules that have an unequal distribution of charges are called __________________________________ molecules, meaning that they have oppositely charged regions

• alkaline

• nonpolar

• polarized lens

• polar