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Total questions: 71

Worksheet time: 2hrs 46mins

Name
Class
Date
1.

Chemistry is a branch of science to study

(I) Interactions between matter

(II) Structure of matter

(III) Composition of matter

(IV) Properties of matter

a)

I, II, and III

b)

I, II, and IV

c)

II, III, and IV

d)

I, II, III, and IV

2.

If you're determining the energy transfer when water boils what branch of chemistry are you working in?

a)

Analytical chemistry

b)

Physical chemistry

c)

Organic chemistry

d)

Biochemistry

3.

________ chemistry is directed to a practical goal or application.

a)

Pure chemistry

b)

Analytical chemistry

c)

Physical chemistry

d)

Applied chemistry

4.

The branch of chemistry which deals with the study of carbon compounds is ?

a)

Biochemistry

b)

Organic Chemistry

c)

Inorganic Chemistry

d)

Polymer Chemistry

e)

Physical Chemistry

5.

The study of the composition, structure, and properties of matter and the changes it undergoes.

a)

Chemistry

b)

Physics

c)

Biology

d)

Social Science

6.

This water is changing from a liquid to a gas via _______.

a)

vaporization

b)

boiling

c)

evaporation

d)

condensation

7.
During the process of condensation, a gas is _______ down to a liquid.
a)
getting 
b)
smelling
c)
heating
d)
cooling
8.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
9.
The freezing point of water in oCelsius and oFahrenheit is:
a)
100oC or 212oF
b)
0oC or 32oF
c)
WRONG
d)
WRONG
10.
This image shows:
a)
Molecules in solid have the greatest amount of energy.
b)
Molecules in a liquid have the greatest amount of energy.
c)
Molecules in a gas have the greatest amount of energy.
d)
They have equal amounts of energy.
11.
When a solid changes into a liquid, it is called ......
a)
freezing
b)
sublimation
c)
melting
d)
boiling
12.
TRUE/FALSE: Boiling and evaporation are both types of vaporization.
a)
TRUE
b)
FALSE
13.

The type of separation that would be appropriate if you needed to separate solid particles from a liquid is....

a)

Distillation

b)

Filtration

c)

Separation funnel

d)

Crystallization

14.

Which are methods of separating dissolved particles from the liquid they are dissolved in?

a)

Filtration, separation funnel, crystallization

b)

Filtration, distillation, crystallization

c)

Evaporation, filtration, crystallization

d)

Evaporation, distillation, crystallization

15.

What separation method is used to separate substances by their boiling point?

a)

Filtration

b)

Evaporation

c)

Crystallization

d)

Distillation

16.

What is the physical property used to separate substances using the method of evaporation?

a)

Boiling point

b)

Melting point

c)

Volatility

d)

Particle size

17.

In which mixture can you see all of the parts?

a)

homogeneous

b)

heterogeneous

18.

In which mixture can you not see all of the parts?

a)

homogeneous

b)

heterogeneous

19.

Trail mix

a)

Solution

b)

Mixture

20.

The smallest particle of an element that still represents that element.

a)

Nucleus

b)

electron

c)

proton

d)

atom

21.

What is a particle with one negative charge called?

a)

electron

b)

proton

c)

quark

d)

neutron

22.

What is a particle with one positive charge called?

a)

proton

b)

electron

c)

neutron

d)

quark

23.

What is the center of an atom called?

a)

nucleus

b)

electron cloud

c)

proton center

d)

photon center

24.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
25.
When an atom loses a valence electron, it becomes a(n) _____________ ion.
a)
positive
b)
negative
c)
neutral
d)
polyatomic
26.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
27.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
28.
In terms of matter, the atom is almost entirely filled with _____
a)
orbiting electrons
b)
charged protons
c)
heavy neutrons
d)
empty space
29.
Of the three subatomic particles, which is the smallest and the lightest?
a)
protons 
b)
neutrons
c)
electrons
d)
They are all equal.
30.
An atom has 5 protons and 7 neutrons. What is the mass number of the atom?
a)
5
b)
7
c)
2
d)
12
31.
The atomic number is always the number of ...
a)
neutrons.
b)
electrons.
c)
ions.
d)
protons.
32.

The first energy level, or valence shell can hold up to how many electrons?

a)

8

b)

4

c)

2

d)

5

33.

How many protons does an atom of Sodium (Na) have?

a)

12

b)

11

c)

23

34.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 nonmetals
c)
metal
d)
none of the above
35.
What elements generally make a covalent bond?
a)
metal and nonmetal
b)
2 nonmetals
c)
metal
d)
none of the above
36.
In chemical compounds, covalent bonds form when
a)
the electronegativity difference between two atoms is very large.
b)
electrons are completely transferred between two metals.
c)
pairs of electrons are shared between two nonmetal atoms.
d)
two nonmetal atoms are attracted to each other by opposite charges.
37.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
38.
What happens when an atom loses an electron?
a)
It becomes Negatively Charged
b)
It remains neutral because the proton also leaves.
c)
It becomes Positively Charged
d)
It stays the same.
39.
If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?
a)
O10-
b)
O8+
c)
O2-
d)
O10+
40.

1. Are the atoms more stable when they are bonded together or when they are apart?

a)

Bonded Together

b)

Apart

41.

6. What usually forms the negative ion?

a)

Nonmetals

b)

Metal

c)

None

42.

10. What charges attract?

a)

Opposite

b)

Same

43.

13. What elements generally make a covalent bond?

a)

metal and nonmetal

b)

2 or more nonmetals

c)

metal

d)

none of the above

44.

16. What is the number of valence electrons for Calcium (Group 2)?

a)

1

b)

2

c)

3

d)

4

45.

17. What is the number of valence electrons for Carbon (Group 14)?

a)

1

b)

2

c)

3

d)

4

46.

20. If I was trying to determine if two atoms will bond, what would be helpful to know:

a)

Valence electrons, found by group number

b)

Whether the elements are metals or nonmetals

c)

The electronegativity of the atoms

d)

All of the above, all of which can be found on the Periodic Table

47.

A positively or negatively charged particle.

a)

covalent bond

b)

ion

c)

oxidation number

d)

subscript

48.

Metal atoms drift free from one side to another forming a ____________________________

a)

sea of electrons

b)

sea of ions

c)

sea of molecules

d)

sea of compounds

49.

An ion that is negative is called a ____________________.

a)

polar ion

b)

nonpolar ion

c)

anion

d)

cation

50.

An ion that is positively charged is called a ________________.

a)

polar ion

b)

cation

c)

anion

d)

positive ion

51.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
52.
How many atoms of carbon (C) are in  C6H12O6?
a)
3
b)
6
c)
12
d)
24
53.
Element or compound?
H2O
a)
element
b)
compound
54.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
55.
Chemical reactions occur when _________ are broken and new bonds are formed.
a)
mixtures
b)
osteoclasts
c)
physical bonds
d)
chemical bonds
56.
Balance this equation...
HgO --> Hg + O2
a)
It is balanced 
b)
2HgO --> Hg + O2
c)
2HgO --> 2Hg + O2
57.
Balance this equation...
H2 + Cl2 --> HCl
a)
It is balanced 
b)
3H2 + Cl2 --> 6H2Cl
c)
H2 + Cl2 --> 2HCl
58.

Which are the reactants in the following reaction?

2Mg + O2 ---> 2MgO

a)

Mg and O2

b)

MgO

c)

Mg and MgO

d)

O2 and MgO

59.
How many oxygens are in Al₂(SO₄)₃?
a)
4
b)
12
c)
7
d)
24
60.

Which of the following is NOT an indication of a chemical reaction?

a)

new gas formed

b)

temperature change

c)

new smell detected

d)

two liquids form a mixture

61.

Is the equation balanced (yes or no)?  


 Cl2+2KBr → 2KCl +Br2Cl_2+2KBr\ \rightarrow\ 2KCl\ +Br_2  


(a)  

62.

What state of matter is this substance?

a)

solid

b)

liquid

c)

gas

d)

aqueous

63.

Identify the Reactants in this equation.

a)

A

b)

B

64.

Identify the number in blue.

a)

Product

b)

Reactant

c)

Coefficient

d)

Subscript

65.

In what state is this substance?

a)

solid precipitate

b)

dissolved in water

c)

released as a gas

d)

liquid

66.

Is the following equation balanced?

4Fe + 3O2 ---> 2Fe2O3

a)

YES

b)

NO

67.

Is the following equation balanced?

2C2H2 + 5O2 ---> 4CO2 + 2H2O

a)

YES

b)

NO

68.

Is the following equation balanced?

NaHCO3 ---> Na2CO3 + H2O + CO2

a)

YES

b)

NO

69.

Is the following reaction balanced?

2CH3OH + 3O2 ---> 2CO2 + 4H2O

a)

YES

b)

NO

70.

Which of the following equations are correctly balanced?

a)

12CO2 + H2O ---> C6H12O6 + O2

b)

CO2 + H2O ---> 3C6H12O6 + O2

c)

CO2 + 9H2O ---> C6H12O6 + O2

d)

6CO2 + 6H2O ---> C6H12O6 + 6O2

71.

Balanced this equation:

Sb2S3 + O2 ---> Sb + SO2

a)

It is balanced.

b)

Sb2S3 + O2 ---> 2Sb + SO2

c)

Sb2S3 + 3O2 ---> 2Sb + 3SO2

d)

3Sb2S3 + 3O2 ---> 2Sb + SO2

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