Benchmark

Question 0

How many sig digs are in the following number: 8.8000

Answer 0

5

Question 1

How many sig digs are in the following number: 13.74

Answer 1

4

Question 2

How many sig digs are in the following number: 26,001,000

Answer 2

5

Question 3

What are pure substances?

Answer 3

Elements and compounds

Question 4

What are the two types of mixtures?

Answer 4

Homogeneous and heterogeneous

Question 5

What are the two types of compounds?

Answer 5

Ionic and molecular

Question 6

What are three types of elements?

Answer 6

Metals, non-metals, and metalloids

Question 7

Identify the following change as physical or chemical: Iron rusts

Answer 7

Chemical

Question 8

Identify the following change as physical or chemical: Paper burns

Answer 8

Chemical

Question 9

Identify the following change as physical or chemical: Hot iron cools

Answer 9

Physical

Question 10

Identify the following change as physical or chemical: Ice melts

Answer 10

Physical

Question 11

Identify the following change as physical or chemical: Glass breaks

Answer 11

Physical

Question 12

Identify the following change as physical or chemical: Silver tarnishes

Answer 12

Chemical

Question 13

Say whether each is a substance; element or compound or a Mixture; homo or hetero: sodium

Answer 13

Substance; element

Question 14

Say whether each is a substance; element or compound or a Mixture; homo or hetero: carrot cake batter.

Answer 14

Mixture; hetero

Question 15

Say whether each is a substance; element or compound or a Mixture; homo or hetero: Vegetable Soup

Answer 15

Mixture; hetero

Question 16

Say whether each is a substance; element or compound or a Mixture; homo or hetero: Calcium

Answer 16

Substance; compound

Question 17

Say whether each is a substance; element or compound or a Mixture; homo or hetero: blood

Answer 17

Mixture: hetero

Question 18

Homogeneous or heterogeneous?

WATER

Answer 18

Homo

Question 19

Homogeneous or heterogeneous?

LUCKY CHARMS

Answer 19

Hetero

Question 20

Homogeneous or heterogeneous?

DIRT

Answer 20

Hetero

Question 21

Homogeneous or heterogeneous?

GOLD

Answer 21

Homo

Question 22

Element, compound or mixture?

SILVER

Answer 22

Element

Question 23

Element, compound or mixture?

GLUCOSE

Answer 23

Compound

Question 24

Element, compound or mixture? | SEAWATER WITH DRIFT WOOD AND SEAWEED

Answer 24

Mixture

Question 25

Element, compound or mixture? | A BIG MAC

Answer 25

Mixture

Question 26

What regions are an atom divided into?

Answer 26

Nucleus and electron cloud

Question 27

Where are the protons located?

Answer 27

Nucleus

Question 28

Where are electrons located?

Answer 28

Electron cloud

Question 29

Where are neutrons located?

Answer 29

In the nucleus

Question 30

Atomic number Z represents:

Answer 30

Number of protons

Question 31

Mass number A represents:

Answer 31

The number of protons plus neutrons

Question 32

If an atom loses or gains an electron it becomes an:

Answer 32

Ion