WorksheetsChemistry I fall Final
Total questions: 78
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
The charge of a chlorine ion.
a)
-1
b)
+1
c)
-2
d)
+2
2.
The charge of an oxygen ion.
a)
-1
b)
-2
c)
+1
d)
+2
3.
If I am writing an electron configuration and reach the "d-block", what should I do to the row number?
a)
add one
b)
subtract one
c)
subtract two
d)
do nothing!
4.
1s22s22p63s23p1
This electron configuration belongs to...
This electron configuration belongs to...
a)
Aluminum
b)
Boron
c)
Gallium
d)
Carbon
5.
Carbon is in the...
a)
s-block
b)
p-block
c)
d-block
d)
f-block
6.
The name of group 17.
a)
Alkali metals
b)
Noble Gases
c)
Alkaline Earth metals
d)
Halogens
7.
The atom with the largest ionization energy.
a)
Francium
b)
Fluorine
c)
Argon
d)
Radon
8.
Noble gases don't react with anything else because...
a)
they are too large
b)
they are gases
c)
they have 8 valence electrons
d)
they need to gain 1 valence electron
9.
The most reactive metals are the...
a)
Alkaline earth metals
b)
Transition metals
c)
Alkali metals
d)
Halogens
10.
I want to write a noble gas configuration for Fluorine. What noble gas should be in the brackets?
a)
Helium
b)
Radon
c)
Scandium
d)
Neon
11.
Burning & decomposition are _____ changes.
a)
Chemical
b)
Physical
12.
Color & Texture are _________Properties
a)
Physical
b)
Chemical
13.
Which of the following is an intensive property?
a)
Color
b)
Length
c)
Width
d)
Mass
14.
The state of matter with the highest energy is...
a)
Solid
b)
Liquid
c)
Gas
15.
The state of matter with the lowest attraction between its atoms is...
a)
Solid
b)
Liquid
c)
Gas
16.
How many dots should be on a Lewis Dot Structure for nitrogen (N)?
a)
7
b)
8
c)
1
d)
5
17.
How many valence can I use for a drawing of CO2?
a)
16
b)
32
c)
24
d)
10
18.
What is the name for this compound?
MgCl2
MgCl2
a)
Magnesium dichloride
b)
Monomagnesium dichloride
c)
Magnesium chloride
d)
Chloride dimagnesium
19.
2. Which of these recorded observations is qualitative, rather than quantitative?
a)
a. A chemical reaction is complete in 2.3 s.
b)
a. The solid has a mass of 23.4 g.
c)
The compound melts at 87.5°C.
d)
Iron is denser than aluminum.
20.
3. A sample of bismuth has a mass of 343g and a volume of 35.0cm3. What is the density of bismuth?
a)
a. 0.102 g/cm3
b)
b. 9.80 g/cm3
c)
c. 378 g/cm3
d)
d. 1.20 x 104 g/cm3
21.
5. A student determined the density of aluminum by averaging the results of three density calculations. Each value was different, but the average was equal to the accepted value for aluminum’s density. The results of this investigation are best described as ______.
a)
a. Accurate, but not precise.
b)
a. Precise, but not accurate.
c)
a. Both precise and accurate.
d)
a. Neither precise nor accurate.
22.
6. Expressed in scientific notation, 0.0930 m is ___.
a)
93 x 103 m.
b)
9.3 x 10-3m.
c)
9.30 x 10-2 m.
d)
9.30 x 104 m.
23.
12. Which element does the following configuration represent? 1s2,2s2,2p6,3s2,3p5
a)
Phosphorus
b)
Chlorine
c)
Silicon
d)
Argon
24.
13. What is the correct electron configuration for Calcium?
a)
a. 1s2,2s2,2p6,3s2,3p6,4s1
b)
a. 1s2,2s2,2p6,3s2,3p6,4s2
c)
a. 1s2,2s2,2p6,3s2,3p5,4s2
d)
1s2,2s2,2p6,3s3,3p5,4s1
25.
14. What is the correct formula for copper(I) cyanide?
a)
CuCy
b)
CuCy2
c)
CuCN
d)
Cu2CN
26.
15. What is the correct formula for the compound made of magnesium and nitrogen?
a)
Mg2N3
b)
Mg3N2
c)
MgN2
d)
MgN
27.
A physical change to matter can be reversed, whereas a chemical change cannot. In which of the following scenarios is a physical change taking place?
a)
Gas is produced when sodium mixes with water.
b)
A fireplace is burning wood.
c)
Liquid water turns to a vapor at 100°C.
d)
A cracker is being digested in the stomach.
28.
In which of the following scenarios is a chemical change taking place?
a)
Gas is produced when sodium mixes with water.
b)
Sugar dissolves when poured into tea.
c)
Liquid water turns to a vapor at 100°C.
d)
Quartz crystal fractures when struck.
29.
A state of matter that has a definite volume and shape.
a)
solid
b)
liquid
c)
gas
d)
matter
30.
Which of the following is an example of intensive property?
a)
volume
b)
density
c)
length
d)
mass
31.
Which of the following is an example of an extensive property?
a)
weight
b)
density
c)
concentration
d)
temperature
32.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
33.
Which of these is a pure substance?
a)
bread
b)
sodium chloride
c)
garden soil
d)
sea water
34.
Which of these is a mixture?
a)
Salt water
b)
Distilled water
c)
A nugget of gold
d)
A molecule of Oxygen
35.
Which of these is most electronegative?
a)
aluminum
b)
oxygen
c)
sulfur
d)
neon
36.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
37.
Which of the following is NOT an alkali metal
a)
Li
b)
Mg
c)
K
d)
Cs
38.
The majority of elements on the periodic table are
a)
man made.
b)
nonmetals.
c)
metals.
d)
gases.
39.
What is the name of this group?
a)
Nonmetals
b)
Transition Metals
c)
Halogens
d)
Alkali Metals
40.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?
What is the average mass of this element?
a)
74.92 amu
b)
24.97 amu
c)
75.01 amu
d)
74.51 amu
41.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
How many protons does this element have?
How many protons does this element have?
a)
32
b)
33
c)
34
d)
no way to know
42.
An isotope has three forms. 30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu. Average atomic mass will be closest to
a)
2 amu
b)
3 amu
c)
4 amu
d)
5 amu
43.
What VSEPR structure does CO2 form?
a)
Bent
b)
Linear
c)
Trigonal Planar
d)
Tetrahedral
44.
What VSEPR structure is this?
a)
Trigonal Pyrimidal
b)
Trigonal Planar
c)
Tetrahedral
d)
Bent
45.
What Shape would BH3 form?
a)
Trigonal Pyrimidal
b)
Trigonal Planar
c)
Tetrahedral
d)
Bent
46.
Which quantity is measured using this tool?
a)
weight
b)
mass
c)
volume
d)
length
47.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
48.
Which state of matter has tightly packed molecules?
a)
solid
b)
liquid
c)
gas
49.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
50.
A chemical change
a)
doesn't really change much.
b)
creates a new substance
c)
is a change in the state of matter
51.
A physical change is...
a)
a change that doesn't change the identity
b)
a change that makes something new.
c)
a chemical reaction
52.
This particle is found in the nucleus and has a positive charge
a)
Electron
b)
Proton
c)
Neutron
53.
This is a negatively charged particle found outside the nucleus
a)
Electron
b)
Proton
c)
Neutron
54.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
55.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
56.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
57.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
58.
How do the following two elements bond together?
Al3+ O2-
Al3+ O2-
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
59.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
60.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
61.
A covalent bond is formed when two atoms ____ electrons
a)
share
b)
lose
c)
transfer
d)
gain
62.
What type of elements will form an ionic bond?
a)
Metals + Metals
b)
Nonmetals + Nonmetals
c)
Metals + Nonmetals
d)
None of the above
63.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
64.
What is oxidation number of P in K3PO4?
a)
+1
b)
+5
c)
-2
d)
0
65.
What is oxidation number of H in CaH2?
a)
+1
b)
-1
c)
0
d)
+2
66.
What VSEPR structure does water form?
a)
Bent
b)
Linear
c)
Hydro
d)
H2O
67.
Hint: Draw the Lewis dot structure for NH3.
a)
tetrahedral
b)
trigonal pyramid
c)
trigonal planar
d)
bent or angular
68.
How many unshared pairs of electrons will a pyramidal molecule have?
a)
1
b)
2
c)
3
d)
4
69.
3 atoms bonded and 0 lone pairs
a)
linear
b)
trigonal planar
c)
bent
d)
tetrahedral
e)
trigonal pyramidal
70.
4 shared pairs and 0 unshared pairs
a)
true linear
b)
trigonal planar
c)
bent
d)
tetrahedral
e)
trigonal pyramidal
71.
Write in standard form:
8 x 104
8 x 104
a)
8,000
b)
80,000
c)
.00008
72.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
73.
Write in scientific notation:
0.0000378
0.0000378
a)
3.78 x 10-5
b)
3.78 x 10-6
c)
0.378 x 10-5
74.
How would you write 0.0005 in scientific notation?
a)
50 x 10-5
b)
5 x 10-4
c)
5 x 103
d)
.5 x 103
75.
Is milk going sour a physical or chemical change?
a)
Physical
b)
Chemical
76.
Is mold growing on cheese a physical or chemical change?
a)
Physical
b)
Chemical
77.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
78.
Sandra was burning a vanilla candle. Was there a chemical reaction?
a)
no, because burning is never a chemical reaction.
b)
Yes, because the properties of the wick changed.
c)
yes, because heat was added.
d)
no, because the ash formed was a different substance.
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