Properties of Matter

Scientific Notation

100

133,555,800

1.3*10⁹

200

60

6.0*10¹

300

0.009

9*10^-3

400

48900

4.89*10⁴

500

67

607*10¹

Significant Figure

100

133,555,800

7

200

5.012

4

300

0.006

1

400

1.03338000

9

500

60

1

Physical vs Chemical Change

100

Evaporation 

Physical 

200

A pellet of sodium is sliced in two 

Physical 

300

Potassium chlorate decomposes to potassium chloride and oxygen gas 

Chemical 

400

Sodium Hydroxide dissolves in water 

Physical 

500

Hydrochloric Acid reacts with potassium hydroxide to produce a salt, water, and heat

Chemical 

Mixtures

100

Lead (Pb) 

Element or Compound

Element 

200

Baking Soda (NaHCO₃) 

Element or Compound?

Compound 

300

Vegetable Soup

Heterogeneous or Homogeneous 

Heterogeneous

400

Kool-Aid Drink 

Heterogeneous or Homogeneous

Homogeneous

500

Pure Iron 

Pure Substance or Mixture 

Pure Substance 

Conversion

100

Convert 300 mg to g

0.3g

200

Convert 7 L to mL

7000 mL

300

Convert 7.6 m to cm 

760 cm 

400

Convert 130 mg to g

0.130 g

500

Convert 198 g to kg

0.198 g