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Prep Chem Saturday School 9/7/19

Total questions: 100

Worksheet time: 2hrs 48mins

Name
Class
Date
1.
Mass is
a)
the amount of matter is in an object
b)
the way you say math when you are missing your teeth
c)
the amount of space an object takes up
d)
the smallest part of matter
2.
Volume is
a)
the nucleus of an atom
b)
the amount of space an object takes up
c)
amount of matter an object has
d)
added to baking soda to make a volcano
3.
Density is
a)
how smart you are
b)
an example of a gas
c)
the smallest part of matter
d)
the amount of matter packed into a certain volume of space
4.
Matter is made of the smallest particles called
a)
sawdust
b)
atoms
c)
gas
d)
molecules
5.

A physical property that measures mass per unit volume

a)

density

b)

flammability

c)

physical property

d)

element

e)

reactivity

6.

characteristic/trait that can be seen through direct observation of a substance.

a)

mixture

b)

physical property

c)

physical change

d)

chemical property

e)

chemical change

7.

an example of a physical change

a)

flammability

b)

fireworks exploding

c)

rust

d)

melting

8.

has a definite volume but takes the shape of its container

a)

solid

b)

liquid

c)

gas

d)

plasma

e)

Bose-Einstein condensate

9.

the ability to burn

a)

physical change

b)

conductivity

c)

elasticity

d)

flammability

e)

reactivity

10.

an example of a chemical change

a)

breaking glass

b)

boiling water

c)

stretching copper into wire

d)

rusting

11.

a homogenous mixture

a)

solid

b)

solution

c)

matter

d)

compound

12.

transforms one type of matter into another type of matter

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

13.

a mixture that has the same composition throughout the entire substance

a)

heterogenous mixture

b)

homogenous mixture

c)

pure substance

d)

matter

14.

observed when a substance changes into a new substance

a)

physical property

b)

chemical property

c)

physical change

d)

chemical change

15.

a change to a substance that does NOT change the identity of the substance

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

16.

used to observe and describe matter

a)

physical property

b)

physical change

c)

chemical property

d)

chemical change

17.

something that will always have the same composition

a)

matter

b)

compound

c)

pure substance

d)

mixture

e)

solution

18.

matter that has a fixed shape and volume (rigid)

a)

solid

b)

liquid

c)

gas

d)

plasma

e)

Bose-Einstein condensate

19.

a substance made from two or more different elements

a)

matter

b)

mixture

c)

compound

d)

pure substance

e)

solution

20.

matter that has no fixed volume or shape - it takes the shape and volume of its container

a)

solid

b)

liquid

c)

gas

21.

something that has a variable composition

a)

matter

b)

mixture

c)

compound

d)

pure substance

e)

solution

22.

a substance that cannot be broken down into other substances

a)

matter

b)

mixture

c)

element

d)

solid

e)

solution

23.

a mixture that has a different composition throughout the substance

a)

heterogenous mixture

b)

compound

c)

homogeneous mixture

d)

element

24.

H2O is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

25.

Calcium (Ca) is an example of a(n):

a)

Element

b)

Compound

c)

Homogenous Mixture

d)

Heterogeneous Mixture

26.

Tap water (water, salt & minerals) is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

27.

Methane (CH4) is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

28.

Chicken noodle soup is an example of a(n):

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

29.

Which of the following is a physical property?

a)

Heat of combustion

b)

Boiling point

c)

Flammability

d)

Reactivity

30.

Which of the following is NOT a sign that a chemical change has occurred?

a)

Change in color

b)

Change in shape

c)

Formation of a gas

d)

Change in odor

31.

Which of the following is an example of a chemical change?

a)

Ripping paper in half

b)

Boiling an egg

c)

Cracking an egg

d)

Dissolving sugar in water

32.

Which of the following is a physical change?

a)

Burning a match

b)

Vinegar reacting with baking soda

c)

Melting butter

d)

Cooking an egg

33.

Which of the following is a chemical property of water?

a)

Reacts with pure sodium.

b)

Boils at 100 oC.

c)

Dissolves sugar easily.

d)

Has a density of 1 gm/mL

34.

How would you classify the matter in the picture above?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

35.

How would you classify the matter in the picture above?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

36.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
37.
Convert 5 cm to mm:
a)
5,000mm
b)
0.5 mm
c)
0.05 mm
d)
50 mm
38.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
39.
5,000 mg = ____ g
a)
50
b)
5
c)
500
d)
5,000
40.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
41.
There are ___ millimeters(mm) in 2.7 centimeters (cm)
a)
270 mm
b)
.27 mm
c)
27 mm
d)
.027 mm
42.
convert 9 km to mm
a)
900,000
b)
9,000,000
c)
9,000
d)
90,000
43.
Convert 6570 cm to km
a)
.06570 km
b)
.6570 km
c)
6.570 km
d)
657.0 km
44.
Convert 4 km to mm
a)
400 mm
b)
.004 mm
c)
400,000
d)
4,000,000
45.

How many significant figures are in the number? 2804 m

a)

3

b)

4

c)

5

d)

unknown

46.

How many significant figures are in the number? 75,000 m

a)

2

b)

3

c)

5

d)

unknown

47.

How many significant figures are in the number? 4.06 x 10-5 m

a)

3

b)

7

c)

5

d)

unknown

48.

How many significant figures are in the number? 0.003068 m

a)

6

b)

5

c)

4

d)

unknown

49.

What is the correct answer for: 1.31 cm x 2.3 cm

a)

3.013

b)

3.01

c)

3.02

d)

3.0

50.

What is the correct answer for: 20.2 cm ÷ 7.41 s

a)

2.726045884

b)

2.72604

c)

2.73

d)

2.7

51.

What is the correct answer for: (2 X 107 ) x (8 X 10-9 )

a)

0.22

b)

1.6 x 10-1

c)

4 x 10-1

d)

2 x 10-1

52.
Calculate the product of 123000 m and 3234 m.  Give your answer with the appropriate number of significant figures.
a)
3.97 x 10-7 m2
b)
39800000 m2
c)
398 m2
d)
3.98 x 108 m2
53.
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
54.
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
55.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3? (All calculations should have the correct sig figs)
a)
13.3 g
b)
13 cm3
c)
1695 g
d)
1700 cm3
56.
Calculate the mass of a substance which has a volume of 35.0 cm3 and a density of 0.50 g/cm3.(All calculations should have the correct sig figs)
a)
17.5 g
b)
0.014 g
c)
18 g 
d)
70. g
57.
What is the density of a rock if its mass is 36g and its volume is 12.0 cm3? (All calculations should have the correct sig figs)
a)
432 g/cm3
b)
0.33 g/cm3
c)
48 g/cm3
d)
3.0 g/cm3
58.
The density of platinum is 21.45 g/cm3. How much space would 107.25 g take up?  (All calculations should have the correct sig figs)
a)
0.2000 cm3
b)
5.000 cm3
c)
5 cm3
d)
2301 cm3
59.
If an object has a density of 21.45 g/cm3, what will be the density of the object if you cut it in half? (All calculations should have the correct sig figs)
a)
21.45 g/cm3
b)
10.725 g/cm3
c)
2 g/cm3
d)
42.9 g/cm3
60.

Give the correct scientific notation for this number: 0.0006050

a)

6.05 x 10-4

b)

0.6050 x 10-3

c)

6.050 x 104

61.

Give the correct scientific notation for this number: 506,700,000

a)

5067 x 105

b)

5.067 x 108

c)

5.06700 x 10-5

62.

The correct format for writing 0.0000007602 is

a)

7.602-7

b)

7.602E-7

c)

7.602 x 10-7

d)

7602 x 10-4

63.

How close a set of measurements are to each other...

a)

accuracy

b)

precision

c)

% error

d)

luminous intensity

64.

How close a measurement is to the accepted value...

a)

accuracy

b)

precision

c)

electric current

d)

adaptability

65.
A unit defined by a combination of base units
a)
base unit
b)
percent error
c)
derived unit
d)
density
66.
Expresses any number as a number between 1 and 10 (known as a coefficient) multiplied by 10 raised to a power (known as an exponent). Makes it easier to write large or small quantities.
a)
significant figure
b)
scientific notation
c)
precision
d)
accuracy
67.
What do we call a quantity that has both a number and a unit?
a)
measurement
b)
accepted value
c)
experimental value
d)
percent error
68.
Research directed toward a specific objective is
a)
Clinical
b)
Basic
c)
Medical
d)
Applied
69.
Research to increase fundamental knowledge is
a)
Applied
b)
Basic
c)
Clinical 
d)
Medical
70.

What is the difference between a scientific theory and a law?

a)

A theory is a guess and a law is a fact.

b)

A theory explains how it happens and a law is what happens in nature.

c)

A law is a rule and a theory is fact.

d)

There is no difference.

71.
The general pattern of investigational procedures
a)
Scientific Method
b)
Theory
c)
Scientific Law
d)
Hypothesis
72.
A possible explanation or prediction of a problem based on observation and prior knowledge that can be tested by experimentation
a)
Conclusion
b)
Problem
c)
Hypothesis
d)
Experiment
73.
Problem, research, hypothesis, experiment, analyze data, and conclusion
a)
Scientific Law
b)
Scientific Method
c)
Theory
d)
Model
74.
A ___________ is an arrangement of elements in columns
a)
columns
b)
rows
c)
periodic table
d)
electron shell
75.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
76.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
77.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
78.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
79.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
80.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
81.
A horizontal row of elements in the periodic table.
a)
column
b)
group
c)
period
82.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
83.

What period is Lead (Pb) in?

a)

6

b)

4

c)

Metals

d)

4A

84.

What category is silicon (Si) a part of?

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Halogens

85.

Which element conducts electricity the best?

a)

Silicon

b)

Fluorine

c)

silver

d)

Arsenic

86.

Which color on the image of the periodic table corresponds with the halogens.

a)

red

b)

black

c)

blue

d)

orange

87.

Which color on the image of the periodic table corresponds with the lanthanides.

a)

red

b)

black

c)

blue

d)

orange

88.

Which color on the image of the periodic table corresponds with the transition metals.

a)

red

b)

black

c)

blue

d)

orange

89.

Which color on the image of the periodic table corresponds with the alkaline earth metals.

a)

yellow

b)

dark yellow

c)

blue/green

d)

teal

90.

The periodic table is mostly comprised of what type of element?

a)

Metals

b)

Nonmetals

c)

Metalloids

91.

Which of the following is not true of metalloids?

a)

Silicon and Germanium are common metalloids used in computers.

b)

Metalloids contain properties similar to both metals and nonmetals.

c)

Metalloids are found in a stair step line between metals and nonmetals on the periodic table.

d)

Metalloids are the first choice in building materials.

92.

What are the elements in groups 3-12 of the periodic table called?

a)

Transition metals

b)

Non-metals

c)

Metalloids

d)

Metals

93.

Hydrogen is a:

a)

Alkali metal

b)

Metalloid

c)

Non-metal

d)

Noble gas

94.

What is the name of Group 1 elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

95.
Why are there two groups separated at the bottom of the periodic table?
a)
These groups have very special properties
b)
These groups are not true elements
c)
Simply for printing purposes
d)
Because Mendeleev said so.
96.

There are ____ groups in the periodic table

a)

21

b)

9

c)

18

d)

7

97.

There are ___ periods

a)

7

b)

18

c)

6

d)

9

98.

Which element is in group 6 period 6

a)

K

b)

W

c)

Sn

d)

Pb

99.
Atoms with similar properties are most likely located...
a)
in the same period.
b)
in the same group.
c)
in different periods.
d)
to the right and left of each other.
100.
Group Name and Number for Magnesium
a)
Alkaline Earth Metals 2 or 2A
b)
Noble Gases 18 or 8A
c)
Halogens 17 or 7A
d)
Alkali Metals 1 or 1A

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