Topic 1 Properties of Water

Question 1

• Dipoles of H2O break up charged ionic molecules making it easy for water to dissolve substance

Answer 1

Excellent Solvent

Question 2

• Degree in which a substance changes temperature in response to a gain or loss of heat
• Must add an amount of energy to warm up water
• Water has a high heat of vaporization

Answer 2

High Heat Capacity

Question 3

• Water expands and becomes less dense as it freezes which also causes the H-bonds to become rigid

Answer 3

Ice Floats

Question 4

• Water is attracted to like substances

- The strong cohesion between H2O molecules allows it to have a high surface tension

Answer 4

Cohesion/Surface Tension

Question 5

• Water is attracted to unlike substances

Answer 5

Adhesion

Question 6

• Ability of a liquid to flow without external forces

Answer 6

Capillary Action