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Worksheets

IPC fall semester review

Total questions: 98

Worksheet time: 2hrs 43mins

Name
Class
Date
1.

What is the difference between compounds and elements?

a)

Compounds and elements can be chemically broken down

b)

Compounds and elements can not be broken down chemically

c)

Compounds can be broken down chemically and elements can not.

d)

Elements can be broken down chemically and compounds can not.

2.

Match the following

a)

gas

1.

far apart and randomly moving

b)

liquid

2.

sliding and close together

c)

solid

3.

tightly packed and vibrating

3.

What type of change is melting an ice cube an example of?

a)

physical change

b)

chemical change

c)

intensive property

d)

chemical property

4.

What type of change is an apple rotting an example of?

a)

physical change

b)

extensive property

c)

chemical property

d)

chemical change

5.

What type of change is shredding paper an example of?

a)

physical property

b)

intensive property

c)

chemical change

d)

physical change

6.

What type of change is burning paper an example of?

a)

chemical change

b)

extensive property

c)

chemical property

d)

physical change

7.
Flammability (burns)
a)
Physical Property
b)
Chemical Property
8.
Reacts with acid
a)
Physical Property
b)
Chemical Property
9.
Melting point
a)
Physical Property
b)
Chemical Property
10.
What characteristic defines all chemical changes?
a)
There is a change of state.
b)
Electricity is produced.
c)
A new material is formed.
d)
Bubbles are produced. 
11.
Dissolving sugar in water is an example of a 
a)
physical change
b)
chemical change
12.
Element or Compound?
H2O
a)
Element
b)
Compound
13.
Element or Compound?
Au
a)
Element
b)
Compound
14.
Salt has a chemical formula of NaCl.  Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
15.
A combination of substances that are not chemically combined is called a(n)____________. 
a)
mixture
b)
compound
c)
physical
16.

At higher temperatures

a)

particles in an object have less kinetic energy

b)

particles in an object move faster

c)

a gas contracts

17.
Cookies and cream ice cream would be classified as
a)
A homogenous mixture
b)
A heterogenous mixture
c)
An element
d)
A compound
18.
Type of mixture that has the SAME COMPOSITION in every part.
a)
Homogenous
b)
Heterogeneous
19.
Type of mixture that DOESN'T HAVE the same composition in every part.
a)
Homogeneous
b)
Heterogeneous
20.
M&M's is an examples of a
a)
homogeneous mixture
b)
heterogeneous mixture
21.
Salad is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
22.
2. A change of state from a liquid to a solid is called....
a)
Melting
b)
Freezing
c)
Evaporation
23.

If a fire erupts, immediately...

a)

notify the teacher.

b)

run for the fire extinguisher.

c)

throw water on the fire.

d)

open the windows.

24.

Approved eye protection devices (such as goggles) are worn in the lab...

a)

to avoid eye strain.

b)

to improve your vision.

c)

only if you do not have corrective glasses.

d)

any time chemicals, heat, or glassware are used.

25.

If you do not understand a direction or part of a lab procedure, you should...

a)

figure it out as do the lab.

b)

try several methods until something works.

c)

ask the teacher before proceeding.

d)

skip it and go on to the next part.

26.

You have been injured in the lab (cut, burned, etc.). First you should...

a)

visit the school nurse after class.

b)

see a doctor after school.

c)

tell the teacher at once.

d)

apply first aid to yourself.

27.

Long hair in the lab must be...

a)

cut short.

b)

held away from the equipment with one hand.

c)

always neatly groomed.

d)

tied back or kept entirely out of the way with a hair band, etc.

28.

Which of the following should NOT be worn during a lab activity?

a)

loose clothing

b)

dangling jewelry

c)

sandals

d)

all of the above

29.

Horseplay, practical jokes, or pranks in the classroom are...

a)

always against the rules.

b)

okay.

c)

not dangerous.

d)

okay if you are working alone.

30.

Before you leave the science room, you should...

a)

clean your work area & equipment.

b)

return all equipment to the proper storage area.

c)

wash your hands with soap & water.

d)

all of the above

31.

What is a comprehensive explanation of many facts that has been repeatedly supported?

a)

Hypothesis

b)

Inference

c)

Observation

d)

Theory

32.

Convert 120 mg to grams.

a)

1200 g

b)

1.2 g

c)

12 g

d)

0.12 g

33.

Convert 7.4 cm to mm.

a)

74 mm

b)

740 mm

c)

0.74 mm

d)

7400 mm

34.

Convert 65 L to mL.

a)

0.065 mL

b)

6500 mL

c)

65, 000 mL

d)

6.5 mL

35.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

36.

Cindy placed three beehives with the same mass into separate (but identical) glass containers. Hive A was kept at 10 degrees Celsius (˚C), Hive B was kept at 29 ˚C, and Hive C was kept at 37 ˚C. For the next month she measured the amount of honey each hive produced. Hive B produced more than the other two hives.

What is the independent variable in her experiment?

a)

The temperature of each hive

b)

The number of hives

c)

The mass of each hive

d)

The amount of honey produced

37.

What is a hypothesis?

a)

a fact

b)

an opinion

c)

an educated guess

d)

a non-educated guess

38.

What is the independent variable: How does the distance from an eye chart affect the number of letters that are recognized on a line?

a)

distance from an eye chart

b)

number of letters

39.

What is the dependent variable: How does the distance from an eye chart affect the number of letters that are recognized on a line?

a)

distance from an eye chart

b)

number of letters

40.

What is the independent variable: How does the amount of oxygen in the water affect the oyster population?

a)

oyster population

b)

amount of oxygen

41.

Write the following number in scientific notation.

360

a)

3.6×1023.6\times10^2  

b)

0.36×1020.36\times10^2  

c)

3.6×1033.6\times10^3  

d)

3.6×10−23.6\times10^{-2}  

42.

Write the following number in scientific notation.

0.052

a)

5.2×1015.2\times10^1  

b)

5.2×10−15.2\times10^{-1}  

c)

5.2×10−25.2\times10^{-2}  

d)

5.2×1025.2\times10^2  

43.

How is the following number written in scientific notation?

450,000

a)

4.5  x  105

b)

45  x  105

c)

4.5  x  104

d)

4.5  x  106

44.

How is the number below written in scientific notation?

0.000398

a)

39.8  x  10-5

b)

3.98  x  10-5

c)

3.98  x  10-4

d)

39.8  x  10-6

45.

Who came up with the first atomic theory?

a)

Dalton

b)

Socrates

c)

Thomas

d)

Rutherford

46.

What did Rutherford discover about atoms?

a)

An atom is always negatively charged.

b)

An atom is mostly empty space, but has a dense positively charged center(nucleus).

c)

An atom is always positively charged.

d)

All particles will pass straight through gold foil with no change in path.

47.

What is a particle with no charge?

a)

neutron

b)

electron

c)

proton

d)

atom

48.

What is a negatively charged particle?

a)

neutron

b)

electron

c)

proton

d)

atom

49.

What two particles would you find in the nucleus of an atom?

a)

Protons and electrons

b)

Neutrons and electrons

c)

Protons and neutrons

d)

Electrons and negatrons

50.

He discovered neutrons.

a)
Rutherford
b)
Bohr
c)
Chadwick
d)
Dalton
e)

Thomson

51.

Which scientist discovered the electrons?

a)

Dalton

b)

Thomson

c)

Atristotle

d)

Bohr

52.

Who first came up with the idea of an atom and called them "atomos"?

a)

o Democritus

b)

o Thomson

c)

o Rutherford

d)

o Bohr

53.
What scientist is best known for his "Plum Pudding" model of the atom?
a)
J.J. Tomson
b)
Ernest Rutherford
c)
John Dalton
d)
Democritus
54.
All of the following of Dalton's theories were correct EXCEPT - 
a)
All atoms are identical.
b)
All matter is made of atoms.
c)
Chemical reactions rearrange atoms.
d)
Compounds contain different atoms.
55.

What are two facts about Democritus's?

a)

Greek philosopher

b)

Created the atomic theory

c)

Used the cathode ray tube in his discovery

d)

Believed that the universe was made of tiny "uncuttable" particles

e)

Discovered that the atom is mostly empty space

56.
He unknowingly discovered the electron as a result of cathode ray tube experiments.    
a)
Thomson
b)
Chadwick
c)
Democritus
d)
Rutherford
57.
He unknowingly discovered the electron as a result of cathode ray tube experiments.    
a)
Thomson
b)
Chadwick
c)
Democritus
d)
Rutherford
58.
How did Rutherford discover the proton?
a)
Cathode tube ray experiment
b)
Gold Foil Experiment
c)
Planetary Model
d)
Plum Pudding Model
59.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
60.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
61.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
62.

What are valence electrons?

a)

The innermost electrons

b)

The outermost electrons

63.

How many valence electrons does Carbon have

a)

1

b)

4

64.

How many valence electrons does Argon have

a)

8

b)

11

65.

The group number tells you the number of

a)

protons

b)

valence electrons

c)

energy levels

66.

The period number tells you the number of

a)

protons

b)

energy levels

c)

valence electrons

67.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
68.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
69.

Match the subatomic particle with its charge

a)

Proton

1.

Positive

b)

Electron

2.

Negative

c)

Neutron

3.

Neutral

70.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

71.

What is the name of this element?

a)

Manganese

b)

Mn

c)

Magnesium

d)

Mg

72.

What is the atomic number of this atom?

a)

59

b)

31

c)

28

d)

30

73.

What is the atomic mass of this atom?

a)

59

b)

31

c)

28

d)

3

74.

Cations have what charge?

a)

+

b)

-

75.

Anions are what charge?

a)

+

b)

-

76.

Noble gases are...

a)

Happy and stable because they have full valence electrons

b)

Happy BUT UNSTABLE because they are gases

c)

Not happy because they don't want to be noble

d)

Not happy but stable because they are group number 18

77.

Anions will

a)

lose electrons

b)

gain electrons

78.
What group on the Periodic Table contains the elements of the alkaline earth family?
a)
1
b)
2
c)
17
d)
18
79.
Which of the following is the most reactive group of non-metals? 
a)
Alkali
b)
Alkali Earth
c)
Halogen
d)
Noble Gas
80.
How many valence electrons does a halogen have? 
a)
1
b)
2
c)
7
d)
8
81.

The is family has properties of both metals and nonmetals.

a)

Alkali

b)

Halogens

c)

Nonmetals

d)

Metalloids

82.

This type of element is dull, brittle solids and gases, insulators, poor conductors of heat and electricity, as well as having low melting points.

a)

metals

b)

metalloids

c)

nonmetals

83.

Vertical columns in the Periodic Table of elements are called __________.

a)

Period or series

b)

Families or Group

c)

Representative elements

d)

Transition elements

84.
Periods on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
85.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

86.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
87.

What type of elements are found on the "staircase" of the periodic table?

a)

Metals

b)

Metalloids

c)

Nonmetals

88.
This class of elements are sometimes called "semiconductors."
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Groups
89.
Where are the nonmetals located on the periodic table? 
a)
Blue
b)
Red
c)
Green
90.
What charge will an Oxygen ion have? 
a)
+1
b)
-1
c)
+2
d)
-2
91.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
92.
Which of the following has a -3 charge?
a)
Boron
b)
Fluorine
c)
Nitrogen
d)
Neon
93.

Element Chlorine [Cl] will make a(n)...

a)

Cation

b)

Anion

94.

Why do ions form?

a)

To get rid of protons

b)

to become stable

c)

to become unstable

d)

to create havoc

95.

How are the elements arranged on the periodic table today?

a)

By atomic mass

b)

By number of electrons

c)

By atomic number

d)

By alphabetic order

96.

How are the elements arranged on the periodic table today?

a)

By atomic mass

b)

By number of electrons

c)

By atomic number

d)

By alphabetic order

97.

Dmitri Mendeleev arranged the 63 known elements at the time by __________________.

a)

atomic number

b)

atomic mass

c)

neutron number

d)

none of the above

98.

Henry Moseley's X-rays showed that each element had a unique positive charge in the nucleus. This led to the discovery of the ________________.

a)

atomic number

b)

atomic mass

c)

neutrons only

d)

none of the above

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