Free Printable CHEM Units 1-2

Free Printable Worksheets

Worksheets

CHEM Units 1-2

Total questions: 100

Worksheet time: 1hrs 17mins

Name

Class

Date

1.

Approach to acquire knowledge through the observation of phenomena

(a)

2.

An observation of natural phenomena tested in a controlled and repeatable process and a rational conclusion can be made

(a)

3.

A tentative and testable explanation for an observation or a series of observations

(a)

4.

A tested explanation of basic natural phenomena

(a)

5.

A statement that summarizes a vast number of experimental observations, and describes or predicts some aspect of the natural world

(a)

6.

Which diagram represents high accuracy but low precision?

a)

A

b)

B

c)

C

d)

D

e)

None of the above

7.

Which diagram represents low accuracy but high precision?

a)

A

b)

B

c)

C

d)

D

e)

None of the above

8.

How many significant figures does this number have:

7256

a)

7256

b)

7

c)

4

d)

2

e)

0

9.

How many significant figures does this number have:

8.29

a)

8

b)

9

c)

3

d)

1

e)

8.29

10.

How many significant figures does this number have:

0.0392

a)

4

b)

5

c)

3

d)

0

e)

0.0392

11.

How many significant figures does this number have:

8200

a)

4

b)

2

c)

3

d)

8

e)

8200

12.

How many significant figures does this number have:

6230.00

a)

6230

b)

6

c)

3

d)

4

e)

6230.00

13.

How many significant figures does this number have:

43.07

a)

43.07

b)

44

c)

2

d)

4

e)

3

14.

How many significant figures does this number have (from the equation):

16.84 ÷ 2.54

a)

4

b)

3

c)

1

d)

7

e)

an infinite amount

15.

How many significant figures does this number have (from the equation):

68 + 1190

a)

2

b)

4

c)

3

d)

6

e)

an infinite amount

16.

Exact numbers have ________ sig. fig(s)

a)

zero

b)

an infinite number of

c)

only two

d)

only one

e)

an unknown number of

17.

Leading zeros are significant.

a)

True

b)

False

18.

What's the SI Unit for temperature?

a)

Celsius

b)

Fahrenheit

c)

Rankine

d)

Newton

e)

Kelvin

19.

What's the SI Unit for time?

a)

minute

b)

hour

c)

day

d)

week

e)

second

20.

What's the SI Unit for length?

a)

centimeter

b)

kilometer

c)

decimeter

d)

meter

e)

millimeter

21.

What's the SI Unit for mass?

a)

kilogram

b)

ounce

c)

pound

d)

ton

e)

gram

22.

What's the SI Unit for amount of substance?

a)

gram

b)

atom

c)

meter

d)

joule

e)

mole

23.

What's the SI Unit for electric current?

a)

volt

b)

ohm

c)

joule

d)

ampere

e)

watt

24.

How many meters are in a centimeter?

a)

100

b)

0.1

c)

0.01

d)

1

e)

10

25.

How many grams are in a teragram?

a)

1.0e+14

b)

1.0e+13

c)

1.0e+11

d)

1.0e+10

e)

1.0e+12

26.

Arrange these unit prefixes in from largest to smallest:

(d, T, p, k, M, n)

[no spaces/commas in your answer]

(a)

27.

Which unit prefix uses μ?

a)

kilo

b)

centi

c)

nano

d)

micro

e)

milli

28.

1 cm³ = ???

a)

1 cm

b)

1 mL

c)

10 mL

d)

0.1 L

e)

1000 µL

29.

1 mL of water =

a)

1 liter of water

b)

2 grams of water

c)

100 mL of water

d)

1 gram of water

e)

0.5 grams of water

30.

How many meters is 240 centimeters?

a)

2400

b)

24

c)

2.4

d)

0.24

31.

Write the following number in scientific notation correctly.

$0.00002\times10^{-5}$

a)

$2\times10^{-11}$

b)

$2\times10^{-10}$

c)

$2\times10^0$

d)

$2\times10^{-9}$

32.

The number 724 000 000 000 is equivalent to which of the following expressions?

a)

F

b)

G

c)

H

d)

J

e)

K

33.

What's the conversion formula for Celsius to Fahrenheit?

a)

F = (C - 32) × 5/9

b)

F = (C × 5/9) + 32

c)

F = (C × 9/5) + 32

d)

F = (C × 1.8) + 30

e)

F = (C + 32) × 9/5

34.

What's the conversion formula for Fahrenheit to Celsius?

a)

C = (F - 32) ÷ 5/9

b)

C = (F × 5/9) + 32

c)

C = (F - 32) × 9/5

d)

C = (F + 32) × 9/5

e)

C = (F - 32) × 5/9

35.

What's the conversion formula for Celsius to Kelvin?

a)

K = °C + 372.15

b)

K = °C - 237.15

c)

K = °C - 273.15

d)

K = °C + 273.15

e)

K = °C + 237.15

36.

Measure to the nearest milliliter.

a)

73 mL

b)

73.1 mL

c)

76 mL

d)

76.1 mL

37.

What is the volume of the screw?

a)

10 mL

b)

13 mL

c)

16 mL

d)

3 mL

38.

What's 57° F in Kelvin?

a)

300.15 K

b)

273.15 K

c)

100° K

d)

400.00 K

e)

287.04 K

39.

The study of the composition and structure matter and of the changes that matter undergoes

(a)

40.

Whatever occupies space and can be perceived by our senses

(a)

41.

The quantity of matter

(a)

42.

This is an example of a(n)...

a)

element

b)

compound

c)

homogeneous
mixture

d)

heterogeneous
mixture

43.

Decide if the following statement describes a physical or chemical property of water:
...

"Water normally freezes at 0.0° C"

a)

physical property

b)

chemical property

c)

neither

44.

Decide if the following statement describes a physical or chemical property of water:
...

"Water is normally useful for putting out most fires."

a)

physical property

b)

chemical property

c)

neither

45.

Decide if the following statement describes a physical or chemical property of water:
...

"A cork floats in water, but a piece of copper sinks."

a)

chemical property

b)

physical property

c)

neither

46.

Decide if the following statement describes a physical or chemical property of water:
...

"During digestion, starch reacts with water to form sugar."

a)

physical property

b)

chemical property

c)

neither

47.

A property of matter that does depend on the amount of substance.

a)

Extensive property

b)

Intensive property

48.

A property of matter that doesn't depend on the amount of substance.

a)

Extensive property

b)

Intensive property

49.

Select all the intensive properties.

a)

mass

b)

color

c)

volume

d)

density

e)

length

50.

Select all the extensive properties.

a)

mass

b)

color

c)

volume

d)

density

e)

length

51.

Is melting point an extensive or an intensive property?

a)

extensive property

b)

intensive property

c)

both

d)

neither

52.

Are these particles in a solid, liquid, or gas?

a)

Solid

b)

Liquid

c)

Gas

53.

What kind of property can be observed without doing a chemical reaction?

a)

Chemical property

b)

Physical property

54.

What kind of property cannot be observed without doing a chemical reaction?

a)

Chemical property

b)

Physical property

55.

Select all the physical properties.

a)

luster

b)

hardness

c)

reactivity

d)

flammability

e)

color

56.

Select all the chemical properties.

a)

luster

b)

hardness

c)

reactivity

d)

flammability

e)

color

57.

Type the string of common diatomic elements that make silly sounding word.

(a)

58.

This picture represents which of the following?

a)

element

b)

compound

59.

This method of separating mixtures is known as...

a)

Distillation

b)

Filtration

c)

Chromatography

60.

This method of separating mixtures is known as...

a)

Distillation

b)

Filtration

c)

Chromatography

61.

Select the particles that reside in the nucleus of an atom.

a)

electrons

b)

protons

c)

neutrons

62.

Positively charged subatomic particles

a)

Protons

b)

Electrons

c)

Neutrons

63.

The number of ______ in an atom is the atomic number

a)

protons

b)

nuclei

c)

electrons

d)

neutrons

64.

Which letter represents the:

Noble Gases

(a)

65.

Which letter represents the:

Alkali Metals

(a)

66.

Which letter represents the:

Alkaline Earth Metals

(a)

67.

Which letter represents the:

Transition Metals

(a)

68.

Which letter represents the:

Lanthanides

(a)

69.

Which letter represents the:

Actinides

(a)

70.

What is silver's chemical symbol?

a)

Si

b)

Fe

c)

Pb

d)

Ag

e)

Au

71.

Name this polyatomic ion:

NH₄⁺

(a)

72.

Name this polyatomic ion:

CrO₄^2-

(a)

73.

Name this polyatomic ion:

CO₃^2-

(a)

74.

Name this polyatomic ion:

NO₂^-

(a)

75.

Name this polyatomic ion:

NO₃^-

(a)

76.

Name this polyatomic ion:

PO₄^3-

(a)

77.

Name this polyatomic ion:

SO₃^2-

(a)

78.

Name this polyatomic ion:

SO₄^2-

(a)

79.

Name this polyatomic ion:

ClO^-

(a)

80.

Name this polyatomic ion:

ClO₂^-

(a)

81.

Name this polyatomic ion:

ClO₃^-

(a)

82.

Name this polyatomic ion:

ClO₄^-

(a)

83.

Name this polyatomic ion:

BrO₃^-

(a)

84.

Name this polyatomic ion:

IO₃^-

(a)

85.

Name this polyatomic ion:

CN^-

(a)

86.

Name this acid:

H₂CO₃

(a)

87.

Name this acid:

HNO₃

(a)

88.

Name this acid:

HNO₂

(a)

89.

Name this acid:

HClO₂

(a)

90.

Name this acid:

HClO₃

(a)

91.

Name this acid:

HClO₄

(a)

92.

Which number does "hepta-" refer to?

a)

8

b)

6

c)

5

d)

9

e)

7

93.

What's the name of this compound:

SO₃

a)

monosulfur trioxide

b)

monosulfur oxide

c)

sulfur trioxide

d)

sulfur oxide

e)

disulfur tetroxide

94.

What's the name of this compound:

CaCl₂

a)

calcium chloride

b)

calcium dichloride

c)

monocalcium chloride

d)

monocalcium dichloride

e)

sodium chloride

95.

A vertical column is called...

a)

group

b)

tower

c)

period

d)

crew

96.

Where are the metalloids located on the periodic table?

a)

Blue

b)

Red

c)

Green

97.

What is the name of the polyatomic ion with the given formula?

(spelling counts)

(a)

98.

When the polyatomic ion in an acid ends in -ate, the root name of the polyatomic ion is followed by the ending -_____.

a)

ide

b)

ic

c)

ous

d)

ite

99.

The pH scale...what numbers on the scale represent an acid?

a)

0-6

b)

7

c)

8-14

100.

Name the following ionic compound: LiCO₃

a)

Lithium carbon oxide

b)

Lithium carbonide

c)

Lithium carbonate

d)

Lithium carboxide

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