Chapter 1overview
Supplemental Instruction
Iowa State University / Leader: / Jan
Course: / Chem. 163
Instructor: / Dr.De Silva
Date:
  1. Define matter (broad simple definition)
  2. What is the classification of matter according to chemists?
  3. List at least 6 pure substances: ( 3 elemental and 3 compounds)
  4. Give 4 examples of mixture: (2 homogeneous, 2 heterogeneous)
  5. Physical change or Chemical change?
    mowing the lawn
    corroding metal (rust)
    squeezing oranges to make orange juice
    cream being whipped
    burning of gasoline
    hammering wood together to build a playhouse
    bending a metal
    putting salt in water
    burning tree
    sanding a surface with sandpaper
  6. Physical or Chemical property?


color
smooth surface
flammability

mass
density
ability to rust

Chapter 2-2.6
Supplemental Instruction
Iowa State University / Leader: / Jan
Course: / Chem. 163
Instructor: / Dr. De Silva
Date:

1.  Indicate the # of significant figures:
99.49= 2.820*10^ 7=
0.0009= 0.00300=
8007= 0.0200045=
4*108= 165.05=
6000= 3.5=
0.002804= 100.=

2.  Do the following calculations and report your answer with correct # of sig. figs.


3020 ÷ 77.7= 7.33 + 2.821=

9 x 100 x 80= 45.756 - 8.127=
41.5 x 0.034 x 8000= 48.95-4.2+2=
200 ÷ 6.7= 2.645-4.354=

Complete the following table:

Greek Prefix / Meaning
Giga-
Mega-
Kilo-
102
Deci-
10-2
10-3
Micro-
Nano-
Pico-

Convert the following:

500m to (km)

42cm in to (km)

10nm to (Mm)

Chapter 2.8-2.10
Supplemental Instruction
Iowa State University / Leader: / Jan
Course: / Chem. 163
Instructor: / Dr. De Silva
Date:

Convert the following:

500m to (km) 10cm2 to km2

42cm in to (km) 1L to mm3
10m to (Mm) 1g/ml to kg/l

3.5miles to (inch) 1ft to miles


Challenge:

16 mp/h to m/s

What are the boiling and freezing points of H2O in Celsius?

What is the difference between Kelvin and Celsius scale?

Convert the following:

299K into (C°) 37(C°) to F

-58(C°) into K 100F to (C°)

6505K into (C°)

-273.15(C°) into K

Write these #s in scientific notation:

0.00056

387.52

-0.687

1000000

A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density? In (g/ml)

A rectangular prism has dimensions of 5x7x8 cm and weighs 2.5kg. Find the density of the prism in (kg/m3)

Useful formulas and conversion factors:
T(°F)=T(°C)× 9/5 + 32

5280 feet in a mile
1L = 1 dm^3
1mile =1.609km