Chapter 1-4

Question 0

Heterogeneous

Answer 0

Different

Question 1

The study of matter and the changes it undergoes

Answer 1

Chemistry

Question 2

Homogeneous

Answer 2

The same or uniform

Question 3

2 or more substances heterogeneously combined having a variable composition

Answer 3

Mixture

Question 4

2 or more substances homogeneously combined having a variable composition

Answer 4

Solution

Question 5

Suspension

Answer 5

Particles will eventually settle at the bottom

Question 6

Colloid

Answer 6

Particles are too small to settle

Question 7

Tyndall effect

Answer 7

Light scattering effect of colloids

Capable to see light beam

Question 8

2 or more elements chemically bonded having a constant composition

Answer 8

Compound

Question 9

One type of atom

Answer 9

Element

Question 10

Process that alters the composition of a substance

Answer 10

Chemical change

Question 11

How are compounds separated

Answer 11

By chemical changes

Question 12

Process that alters the appearance of a substance

Answer 12

Physical change

Question 13

What are phase changes considered

Answer 13

Physical

Question 14

How are mixtures and suspensions separated

Answer 14

By physical changes

Question 15

Characteristic that describes how a substance interacts with other chemicals

Answer 15

Chemical properties

Question 16

Characteristic of a substance you can determine with the 5 senses

Answer 16

Physical properties

Question 17

What are some ex of physical properties

Answer 17

Melting point
Boiling point
Density

Question 18

Property that is independent of the sample size

Answer 18

Intensive property

Question 19

Property that varies with the sample size

Answer 19

Extensive property

Question 20

Ex of intensive properties

Answer 20

Melting point
Boiling point
Freezing point 
Density
Temperature

Question 21

Ex of extensive property

Answer 21

Heat

Question 22

Smallest part of a compound

Answer 22

Molecule

Question 23

When all molecular energy stops
0 kelvin
-273 degrees Celsius

Answer 23

Absolute zero

Question 24

How do molecules have energy

Answer 24

Temperature

Question 25

What is the majority of a gas

Answer 25

Empty space

Question 26

Exact number

Answer 26

Infinite amount of sig figs | A counting number

Question 27

Where is the proton located What is it's charge What is it's mass

Answer 27

Nucleus Positive 1 amu

Question 28

Where is the neutron located What is it's charge What is it's mass

Answer 28

Nucleus Neutral charge 1 amu

Question 29

Where is the electron located What is it's charge What is it's mass

Answer 29

Outside nucleus Negative charge Mass is negligible

Question 30

Atomic number

Answer 30

Number of protons | Also same as number of electrons as long as the atom is neutral

Question 31

How do you determine the number of neutrons an atom has

Answer 31

Mass number - atomic number

Question 32

Various forms of the same element having the same number of protons but different number of neutrons resulting in different masses

Answer 32

Isotope

Question 33

Weighted average of an atom

Answer 33

Mass number