Vocab

Question 1

Observation

Answer 1

A direct form of knowledge obtained by one of the five senses or an instrument.

Question 2

Interpretation

Answer 2

An indirect form of knowledge that builds upon a concept or experience.

Question 3

Empirical knowledge

Answer 3

Knowledge gained from observation.

Question 4

Theoretical knowledge

Answer 4

Knowledge gained from interpretation.

Question 5

Qualitative

Answer 5

Describes qualities of matter.

Question 6

Quantitative

Answer 6

Describes amounts of matter.

Question 7

Physical change

Answer 7

Any change to the physical state of a substance.

Question 8

Chemical change

Answer 8

Any chance to the chemical composition of a substance.

Question 9

Matter

Answer 9

Anything with a mass and occupies space.

Question 10

Chemistry

Answer 10

The physical science that deals with the composition, priorities and changes in matter.

Question 11

Science

Answer 11

The study of the natural and technological world with the goal of describing, explaining and predicting substances and change.

Question 12

Technology

Answer 12

The skills, processes and equipment required to manufacture useful products or to preform useful tasks.

Question 13

STP (Standard temperature and pressure)

Answer 13

0 degrees Celsius

101.325 kPa

Question 14

SATP (Standard ambient temperature and pressure)

Answer 14

25 degrees Celsius

100 kPa

Question 15

Gases

Answer 15

• fill and take the shape of their container
• highly compressible (volume becomes smaller when pressure increases and vis versa)
• diffuse
• increase in volume, pressure or both when heated

Question 16

Pressure

Answer 16

• force per unit area

- units of pressure: atm, mmHg, kPa

Question 17

Diffuse

Answer 17

Random notation of particles through a given space until they are equally distributed.

Question 18

SI unit for pressure

Answer 18

kPa

Question 19

Atmospheric pressure

Answer 19

• pressure exerted by the air
• 101 kPa
• decreases as you move higher and vis versa

Question 20

Period

Answer 20

The horizontal rows

Question 21

Group/family

Answer 21

The vertical columns

Question 22

Atomic number

Answer 22

Used to identify the element

Equal to the number of protons

Question 23

Mass number

Answer 23

Sum of the number of protons and neutrons an atom

Question 24

Energy levels

Answer 24

“Rings” around an atom

Each level has a maximum capacity of electrons

Question 25

Isotopes

Answer 25

2 or more atoms of the same element that have a different that have a different number of neutrons and therefore a different mass

Question 26

Atomic size

Answer 26

Group: as atomic number increases so does the atomic radius Period: as atomic number increases atomic radius decreases

Question 27

Ionization energy

Answer 27

The amount of energy required to remove an electron Group: as atomic number increases ionization energy decreases Period: as atomic number increases ionization energy increases

Question 28

Electronegativy

Answer 28

A number that describes the relative ability of an atom to attract electrons Group: as atomic number increases electronegativity decreases Period: as atomic number increases electronegativity increases