Chemistry Test 1

Matter

100

Smallest unit of matter

ATOM

200

Uniform in composition

pure substance

300

A mixture that you can see the components

heterogeneous mixture/

400

Substance that cannot be broken down any further

Elements

Chemical and Physical Changes AND Properties

100

Change: You grind a solid

Physical change

200

Property: Boiling point- The temperature a substance boils 

Physical properties 

300

Change: You add to substances together and it produces heat

Chemical Changes

400

Property: The ability to rust

Chemical Property 

Significant Figures

100

100

1

200

0.000010

2

300

10000.0

6

400

68.2/2.908

22.9

Unit Conversions

100

How many m are in 300 cm?

3m

200

How many m are in 82 km

82,000 m

300

How many mL are in 3.5 L

3500 mL

400

How many microliters are in 0.000 067 L?

67 microliters

Density

100

What is the density formula?

D=m/v

200

What is the mass of a substance that has a volume of 30.0 mL and a Density of 0.8390 g/mL?

25.2 g

300

What is the density of an object that has a mass of 10.0 g and a volume of 13 mL 

0.77 g/mL

400

What is the volume of a substance with a mass of 2 g and Density 3.70 g/mL?

0.5 mL