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WorksheetsSemester 1 Exam Review
Total questions: 53
Worksheet time: 30mins
Name
Class
Date
1.
Which of the following is a definition that classifies matter?
a)
The mass of the object.
b)
The volume of the object.
c)
Anything that has mass and takes up space.
d)
Energy.
2.
Which of the following correctly describes a hypothesis and theory?
a)
They're both mathematical models.
b)
A hypothesis is an explanation for data gathered in an experiment, while a theory is an explanation supported my many experiments.
c)
They're both scientific laws.
d)
A hypothesis is a guess, and a theory is always true.
3.
These are used to round an answer in a conversion problem:
a)
Counted numbers
b)
Exact, accepted conversions
c)
The significant digits in your original measurement
d)
Decimals
4.
When the measurement 220,584g is rounded to four significant figures, it becomes:
a)
2205
b)
220,600g
c)
220,500g
d)
2206g
5.
0.005980mg has:
a)
3 significant figures
b)
4 significant figures
c)
7 significant figures
d)
5 significant figures
6.
Which of the following isn't an example of a chemical change?
a)
Rusting
b)
Evaporating
c)
Burning
d)
Baking
7.
Of the following, which is probably an indication of a physical change:
a)
Change in color
b)
Change in temperature
c)
Melting
d)
Formation of a gas
8.
Steel, which is a homogeneous mixture of iron and carbon, can also be described as a(n):
a)
Compound
b)
Element
c)
Alloy
d)
Ion
9.
These have a definite shape:
a)
Solids
b)
Liquids
c)
Gases
d)
Water
10.
Was credited with designing the original periodic table of elements:
a)
Rutherford
b)
J.J. Thompson
c)
Mendeleev
d)
Dalton
11.
The Greek philosopher that was shunned by Aristotle because of his views on matter:
a)
Rutherford
b)
Dalton
c)
Democritus
d)
Mendeleev
12.
Used a cathode ray tube to explore the atom.
a)
Dalton
b)
J.J. Thompson
c)
Rutherford
d)
Democritus
13.
Tried to prove the 'plum pudding' model and ended up disproving it:
a)
Rutherfod
b)
Dalton
c)
J.J. Thompson
d)
Democritus
14.
Had similar views as a Greek philosopher from hundreds of years prior.
a)
J.J. Thompson
b)
Dalton
c)
Mendeleev
d)
Dalton
15.
The charge of the proton is:
a)
Positive
b)
Negative
c)
Neutral
d)
Ionic
16.
The two sub-atomic particles that have opposite charges are the:
a)
Proton and electron
b)
Proton and neutron
c)
Neutron and electron
d)
Ion and proton
17.
How many neutrons does copper --- 62 have?
a)
27
b)
29
c)
33
d)
26
18.
How many protons does bismuth --- 188 have?
a)
105
b)
83
c)
209
d)
94
19.
What is the mass number for the isotope of chlorine with 20 neutrons?
a)
124
b)
35
c)
37
d)
68
20.
What types of orbitals can be found in the third principal energy level, n = 3?
a)
Only "s"
b)
Only "s" and "p"
c)
Only "s", "p", and "d"
d)
"s", "p", "d", and "f"
21.
This states that orbitals hold two electrons, each with opposite spins; it also states that no two electrons can have exactly the same four quantum numbers:
a)
Hund's rule
b)
Pauli exclusion principle
c)
Aufbau principle
d)
First principle
22.
Photons are given off when:
a)
Electrons jump to higher energy levels.
b)
Electrons return back to their original energy level.
23.
Which of the following has the lowest frequency?
a)
Gamma Rays
b)
Microwaves
c)
Radio Waves
24.
One O2 is called:
a)
A formula unit
b)
A molecule
c)
An atom
d)
An ion
25.
The smallest unit of an ionic compound is:
a)
A formula unit
b)
A molecule
c)
An atom
d)
An ion
26.
What color of visible light possesses the least energy?
a)
Violet
b)
Yellow
c)
Red
d)
Blue
27.
Hertz is a unit for:
a)
Wavelength
b)
Frequency
c)
Speed of light
d)
The trough
28.
m/s would be the appropriate unit for:
a)
Wavelength
b)
Frequency
c)
Speed of light
d)
The trough
29.
Which element would have electrons in the d-block?
a)
Nitrogen
b)
Sodium
c)
Silver
d)
Helium
30.
Which man rejected the atomic theory?
a)
Aristotle
b)
Dalton
c)
Democritus
d)
Meek
31.
Atoms with the same atomic numbers but different mass numbers are:
a)
Ions
b)
Neutrons
c)
Isotopes
d)
Protons
32.
Studying will improve your score on the Chemistry 1 exam:
a)
True
b)
False
33.
The correct electron configuration for germanium is:
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2
b)
1s2 2s2 2p6 3s2 3d10 3p2 4s2 4p2
c)
1s2 2s2 3s2 4s2 4p2
d)
1s2 2p2 3p6 4s2
34.
The correct noble gas electron configuration for copper is:
a)
[Ar] 4s2 3d9
b)
[Ar] 4s2 4d9
c)
[Ar] 4s1 3d10
d)
[Ar] 4s1 3d9
35.
1. What substance is formed after a chemical reaction?
a)
Product
b)
Reactant
c)
subscript
d)
Coefficient
36.
What is a covalent bond
a)
A bond between a metal and a non-metal
b)
a bond between a metal and a metal
c)
a bond between a non metal and a non metal
d)
a bond between a noble gas and a metal
37.
Horizontal rows on the periodic table are called?
a)
groups
b)
families
c)
periods
d)
transition metals
38.
Name the only liquid metal at room temperature
a)
magnesium
b)
titanium
c)
mercury
d)
phosphorous
39.
definite volume - no shape
a)
solid
b)
liquid
c)
gas
d)
plasma
40.
What is the definition of Volume
a)
The amount of mass an object has
b)
The amount of space an object takes up
c)
L x W x H
d)
The circumference of a rectangle
41.
What unit do you measure volume
a)
cm2
b)
grams
c)
kilo meters
d)
mL
42.
What is the mass of a proton
a)
AMU
b)
1 AMU
c)
1 gram
d)
less than a neutron
43.
Italian Salad Dressing is an example of a(n)
a)
heterogeneous mixture
b)
homogeneous mixture
c)
pure substance
d)
solution
44.
Which statement is true about oxygen-17 and oxygen-18?
a)
They do not have the same number of protons.
b)
Their atoms have different number of electrons.
c)
They are isotopes of oxygen.
d)
The have the same mass number.
45.
Wavelength and Frequency are...
a)
directly related
b)
inversely proportional
c)
no correlation
d)
confusing
46.
Ionic compounds
a)
have high melting points.
b)
are brittle.
c)
are good conductors in their liquid state.
d)
all the choices are correct.
47.
FeSO3
a)
iron (I) sulfate
b)
iron sulfite
c)
iron (III) sulfite
d)
iron (II) sulfite
48.
P2O5
a)
phosphorus oxide
b)
phosphorus (II) oxide
c)
diphosphorus pentoxide
d)
phosphorus pentoxide
49.
chromium (III) nitrate
a)
Cr3N2
b)
Cr2N
c)
Cr2NO3
d)
Cr(NO3)3
50.
Which of the following has six valence electrons?
a)
Sodium
b)
Iodine
c)
Oxygen
d)
Carbon
51.
When oxygen becomes an ion, it _____ electrons and becomes _____ in size.
a)
gains, smaller
b)
gains, larger
c)
loses, smaller
d)
loses, larger
52.
Which of the following families is the least electronegative?
a)
noble gases
b)
Halogens
c)
transition metals
d)
alkali metals
53.
What is this element?
1s22s22p63s23p64s23d104p65s24d10
1s22s22p63s23p64s23d104p65s24d10
a)
Zinc
b)
Cadmium
c)
Nickel
d)
Germanium
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