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Unit 2 Test Review - Chemistry

Total questions: 57

Worksheet time: 1hrs 17mins

Name
Class
Date
1.

The amount of matter in an object.

a)

Measurement

b)

Weight

c)

Matter

d)

Mass

2.

Degree of closeness of a measured (or calculated) quantity to its actual value.

a)

Precision

b)

Actual Value

c)

Measurement

d)

Accuracy

3.

Degree to which further measurement (or calculations) show the same or similar results.

a)

Precision

b)

Actual Value

c)

Measurement

d)

Accuracy

4.

The amount of space that an object occupies.

a)

Volume

b)

Matter

c)

Mass

d)

Accuracy

5.

What is the coefficient in the value below?

3.14156 x 10-3

a)

3.14156

b)

10

c)

x

d)

-3

6.

What is the exponenet in the value below?

3.14156 x 10-3

a)

3.14156

b)

10

c)

x

d)

-3

7.

Which value is in standard form?

a)

5.26 x 105

b)

0.00076

8.

Which value is in scientific notation?

a)

5.26 x 105

b)

0.00076

9.

When writing a number in scientific notation, the first number must be between 1 and 9.

a)

False

b)

True

10.

If the exponent is a negative number...

a)

you will get a large number

b)

you will get a small number

11.

Which of the following is the correct way of writing scientific notation?

a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
12.

7.82 x 10-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

a)

Large

b)

Small

13.

The metric units used for mass are...

a)

pounds

b)

liters

c)

grams

d)

meter

14.

The metric units used for volume are...

a)

ounces

b)

meters

c)

liters

d)

grams

15.

The metric units used for length are...

a)

meter

b)

yard

c)

grams

d)

liters

16.

In the metric system, what units do we use to measure length?

a)

meters

b)

feet

c)

yards

d)

inches

17.

In the metric system, what units do we use to measure mass?

a)

liters

b)

pounds

c)

ounces

d)

grams

18.

In the metric system, what units do we use to measure volume?

a)

liters

b)

cups

c)

ounces

d)

gallon

19.

0.345 m to cm

a)

0.00345 cm

b)

0.000345 cm

c)

345 cm

d)

34.5 cm

20.

340000.9 mm to km

a)

3400.09 km

b)

3.400009 km

c)

0.3400009 km

d)

340.0009 km

21.

0.8207 mL to μL

a)

820.7 μL

b)

82.07 μL

c)

0.00827 μL

d)

0.000827 μL

22.

3.14 km to mm

a)

0.000314 mm

b)

0.00000314 mm

c)

3140000 mm

d)

31400 mm

23.

1.1194 ng to µg

a)

111.94 µg

b)

0.00011194 µg

c)

1119.4 µg

d)

0.0011194 µg

24.

Which unit is the smallest?

a)

km

b)

m

c)

mm

d)

cm

25.

Which unit is the largest?

a)

nL

b)

dL

c)

daL

d)

cL

26.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
27.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
28.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
29.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
30.
How many significant figures: 100.000 cL
a)
1
b)
3
c)
5
d)
6
31.
How many sig figs are there?
9009.00
a)
2
b)
4
c)
5
d)
6
32.
How many sig figs are there?
5.00000008
a)
2
b)
6
c)
9
33.

For addition and subtraction, you round your answer to the least number of sig figs.

a)

True

b)

False

34.

For multipication and division, you round your answer to the smallest number of sig figs.

a)

True

b)

False

35.
Calculate 923 g ÷ 20312 cm3 and give your answer with the correct number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
0.05 g/cm3
36.
Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.095 m2
37.
Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.
a)
10 cm3
b)
11.1 cm3
c)
11 cm3
d)
11. cm3
38.
Which of the following numbers has three significant figures?
a)
1014 miles
b)
101 feet
c)
1000 yards
d)
all of the choices
39.

Solve. Round using SigFig math rules.

12.5 mL + 20.05 mL + 2.69 mL

a)

35 mL

b)

35.2 mL

c)

35.24 mL

d)

35.240 mL

40.

How many sig figs are there?

4000.

a)

1

b)

3

c)

4

d)

2

41.
Calculate 7.987 m - 0.54 m and give your answer with the appropriate number of significant figures.
a)
7.45 m
b)
7.447 m
c)
7.4 m
d)
7.5 m
42.

What do you get when you round 1.4236 to 2 sig figs?

a)

1.4

b)

1.5

c)

14

d)

1.42

43.

What do you get when you round 5.8456 x 103 to 4 sig figs?

a)

5.8456 x 103

b)

5.845 x 103

c)

5.85 x 103

d)

5.846 x 103

44.

What do you get when you round 537289 to 2 sig figs?

a)

53

b)

54

c)

540000

d)

530000

45.

What do you get when you round 5.22987 to 3 sig figs?

a)

5.22

b)

5.23

c)

5.230

d)

5.23000

46.

How many sig figs are there for the number below?

4.00 x 108 mm

a)

1

b)

3

c)

9

d)

infinite

47.

Convert 35⁰F to Celsius (5/9 x (0F - 32))

a)

1.6⁰

b)

1.7⁰C

c)

2.0⁰

d)

16.6⁰C

48.

Convert 30°C to Fahrenheit (9/5) (0C) + 32

a)

860°F

b)

86°F

c)

63.8°F

d)

56°F

49.

100 Celsius is ? Kelvin (K = Celsius + 273.15)

a)

173.15 K

b)

373.15 K

c)

273.15 K

d)

0.15 K

50.

 

What two types of measurements make up DENSITY? 

a)

Volume and Weight

b)

Temperature and Mass

c)

Mass and Volume

51.

What is the unit for density ?

a)

g/ mL

b)

g

c)

gcm3\frac{g}{cm^3}  

d)

cm4cm^4  

52.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
53.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
54.

The amount of water displaced is the same as the volume of the object. What is the VOLUME of the object?

a)

40.0 mL

b)

65.0 mL

c)

20.0 mL

d)

25.0 mL

55.
volume?
a)
48 mL
b)
48.2 mL
c)
48.25 mL
d)
4 mL
56.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
57.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise

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