2.5 Study Guide

Question 1

Cohesion

Answer 1

The attraction of molecules for other molecules of the same kind. Water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another.

Question 2

Adhesion

Answer 2

The tendency of two or more different molecules to bond with each other.

Question 3

Solvent

Answer 3

A substance that dissolves a solute, resulting in a solution.

Question 4

Specific heat

Answer 4

Q=mc▲T
Q=heat energy
m=mass
c=specific heat capacity
▲T=change in temperature

Question 5

Heat of Vaporization

Answer 5

The amount of heat needed to turn 1 g of a liquid into a vapor, without a rise in the temperature of the liquid.

Question 6

Explain how water’s polarity or ability to make hydrogen bonds gives it each property

Answer 6

Each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds.