Chemistry

Question 1

Matter is anything that has _______ and ______

Answer 1

Mass and Volume

Question 2

Mass is measured in

Answer 2

Grams

Question 3

Volume is measured in

Answer 3

Liters

Question 4

Distance is measured in

Answer 4

Meters

Question 5

Time is measured in

Answer 5

Seconds

Question 6

Kilo

Answer 6

1,000

Question 7

Deci

Answer 7

1/10

Question 8

Centi

Answer 8

1/100

Question 9

Milli

Answer 9

1/1,000

Question 10

1 in = ______ cm

Answer 10

1 in = 2.54 cm

Question 11

Pure Substance

Answer 11

A substance whose properties are the same throughout
(ex: Gold, water, etc.)

Question 12

Mixture

Answer 12

A combination of 2 or more pure substances

Question 13

Homogenous Mix

Answer 13

A mixture whose composition is the same throughout
(ex: mineral water, sugar in tea)

Question 14

Heterogenous Mix

Answer 14

A mixture whose composition is different in different parts of the sample
(ex: boba tea, salad, sand, dirt)

Question 15

The Law of Mass Conservation

Answer 15

Matter cannot be created or destroyed

Question 16

What’s the difference between elements and compounds?

Answer 16

Compounds can be broken down into simpler substances, elements cannot.

Question 17

State two principles of Dalton’s atomic theory

Answer 17

-All matter is comprised of atoms, which are indivisible and indestructible
-All atoms of an element are identical

Question 18

What does it mean when we say that light has a “dual nature?”

Answer 18

It means that light is both a particle and a wave

Question 19

What are the four parts of a wave?

Answer 19

Crest, trough, amplitude, and wavelength

Question 20

How to convert nm to m?

Answer 20

Multiply nm by 10 to the -9th power

Question 21

What is the velocity of light?

Answer 21

3.00 x 10 to the 8th power

Question 22

What is the density formula?

Answer 22

d = m/v

Question 23

What is the Frequency formula?

Answer 23

f = v/lambda (greek symbol)

Question 24

What is the energy formula?

Answer 24

E = h x f

Question 25

h = ?

Answer 25

h = 6.63 x 10 to the -34th power jewel-seconds

Question 26

Ionic bonds

Answer 26

Metal and non-metal
Don’t use prefixes
Use the + and - format
Can only have two elements

Question 27

Covalent

Answer 27

Non-metals
Use prefixes
Use dot structure format
Can have more than two elements

Question 28

Def’n of electrolysis

Answer 28

The process by which compounds are broken down by using electricity

Question 29

Mono

Answer 29

1

Question 30

Di

Answer 30

2

Question 31

Tri

Answer 31

3

Question 32

Tetra

Answer 32

4

Question 33

Penta

Answer 33

5

Question 34

Hexa

Answer 34

6

Question 35

Which has a larger atomic radius, O or K?

Answer 35

K

Question 36

Which has more electronegativity, O or K?

Answer 36

O

Question 37

Polar covalent

Answer 37

A molecule that has an uneven distribution of electrons resulting in slight molecular changes

It happens in molecules with different elements

Question 38

Purely covalent

Answer 38

A covalent bond in which the electrons are shared equally

Happens in molecules with the same element