# Chapter 1 _ 2 Review

Document Sample

```					Chapter 1 & 2 Review
Which of the following is an
example of a physical change?
•    Adding salt to water
•    Frying an egg
•    Burning paper
•    Growing a plant
•    None of these
Use the approximate rules to report the
result of the following computation.
(43.221-1.6)/11.2
•     3.71
•     4
•     3.7
•     3.72
•     3.7162
3 500 000 is ________________ in
scientific notation

•         0.35 x 10^7
•         35 x 10^5
•         3.5 x 10^6
•         35 x 10^6

1    2     3    4    5    6    7    8    9    10   11   12   13   14   15   16   17   18   19   20
21   22    23   24   25   26   27   28   29   30
200 g is equivalent to how many
pounds?

•         0.00001 lbs
•         0.4 lbs
•         100 lbs
•         400 lbs
•         None of these are
correct.

1    2     3    4    5    6    7    8    9    10   11   12   13   14   15   16   17   18   19   20
21   22    23   24   25   26   27   28   29   30
Qualitative results refer to
•         Results that can be
observed during an
experiment
•         Results that are
difficult to observe
•         Results that are
measured with a
numerical value
•         None of these
1    2     3    4    5    6    7    8    9    10   11   12   13   14   15   16   17   18   19   20
21   22    23   24   25   26   27   28   29   30
Accuracy is defined as
•   A measure of how
often an experimental
value could be
repeated
• The closeness of a
measured value to the
actual value
• The number of sig figs
• 2 All of the above 8 9 10
1     3  4  5  6  7                               11   12   13   14   15   16   17   18   19   20
21   22   23   24   25   26   27   28   29   30
What is the density of an object
that measures 15 mL and 42
grams?
•         0.325 g/mL
•         2.80 g/mL
•         630 g/mL
•         2.8 g/mL
•         0.33 g/mL

1    2     3    4    5    6    7    8    9    10   11   12   13   14   15   16   17   18   19   20
21   22    23   24   25   26   27   28   29   30
How many km are in 150 cm?
•         150000 km
•         1.5 km
•         .0015km
•         .00015 km
•         15000 km

1    2     3    4    5    6    7    8    9    10   11   12   13   14   15   16   17   18   19   20
21   22    23   24   25   26   27   28   29   30
Which element would be a good
replacement for sodium?
•    Calcium
•    Chlorine
•    Cesium
•    Silicon
•    None of these
What is the density (g/mL) of a sample of
mineral oil if 250 mL has a mass of 0.23
kg?
1. 0.0092 g/mL
2. 0.92 g/mL
3. 5.8 g/mL
4. 10.9 g/mL
5. 57.5 g/mL

```
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
 views: 0 posted: 9/16/2013 language: English pages: 11
How are you planning on using Docstoc?