Ch 1.1 The Properties of a Water

Question 1

Polar Molecule

Answer 1

A molecule that has electrically charged areas

Question 2

Capillary Action

Answer 2

The combined force of attraction among water molecules and with the molecules of surrounding material.

Question 3

Surface Tension

Answer 3

The tightness across the surface of water that is caused by polar molecules pulling on one another.

Question 4

Solution

Answer 4

A mixture that forms when one substance dissolves another.

Question 5

Solvent

Answer 5

The substance that does the dissolving.

Question 6

Specific heat

Answer 6

Amount of heat needed to increase the temperature of a certain mass of a substance by 1 degree C.

Question 7

Evaporation

Answer 7

The process which molecules at the surface of a liquid absorb enough energy to change to the gaseous state.

Question 8

Condensation

Answer 8

The process which gas turns into a liquid.

Question 9

What is a water molecule made up of?

Answer 9

2 hydrogen atoms and 1 oxygen atom

Question 10

How many properties of water?

Answer 10

4

Question 11

What are the properties of water?

Answer 11

1. Capillary Action
2. Surface Tension
3. Universal Solvent
4. Specific Heat

Question 12

What 3 matters does water exits in?

Answer 12

1. Liquid
2. Solid
3. Gas

Question 13

At what degree C does water change from a solid to liquid, or liquid to solid?

Answer 13

0 degree C

Question 14

At what degree C does water change from liquid to gas, or gas to liquid?

Answer 14

100 degree C

Question 15

What is required for phase change?

Answer 15

Adding or releasing energy.

Question 16

What is freezing?

Answer 16

Freezing is the process which liquid water turns into a solid water when energy is lost.

Question 17

What is melting?

Answer 17

Melting is a process which solid water turns into liquid water when energy is added?