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WorksheetsCHEMISTRY EOC
Total questions: 37
Worksheet time: 19mins
Name
Class
Date
1.
The accepted value for the heat capacity for Al is 0.9 J/gC. Which group was both accurate and precise?
a)
1
b)
2
c)
3
d)
4
2.
Class hypothesis: A chemical reaction will occur faster at higher temperatures. Students should do the following to reduce the bias in experimentation.
a)
Students collaborate of experiment design.
b)
Teams of students repeat procedures to confirm hypothesis.
c)
Students adjust data results to reflect original hypothesis.
d)
Students develop his or her own conclusion.
3.
Energy demand and efficiency are critical factors in a building’s design. To minimize CO2 emissions, here are some things to consider. Which is NOT a sustainable practice?
a)
use renewable energy
b)
design it better
c)
carefully select materials
d)
use fossil fuels
4.
Which statement is NOT true about the trend of ionization energy (IE)?
a)
He, Ne, and Ar have filled outer e- shells. (highIE)
b)
Atoms with greater mass have greater gravitational force pulling on electrons. (highIE)
c)
The nuclear force increases across periods. (highIE)
d)
H, Li, Na, and K have unparied electrons in outer shell. (lowerIE)
5.
Which pie graph best represents the ratio of metals, metalloids, and nonmetals of the periodic chart?
a)
1
b)
2
c)
3
d)
4
6.
Which Lewis Dot structure best represents sulfur in ground state?
a)
A
b)
B
c)
C
d)
D
7.
How many electrons are in a Lewis Dot structure of a neutral element with 12 total protons and 12 electrons.
a)
0
b)
2
c)
6
d)
8
8.
Which model is best depiction of 3s orbital of Magnesium?
a)
A
b)
B
c)
C
d)
D
9.
Which particle spacing represents physical process that decreases in energy?
a)
A solid --> liquid
b)
B liquid --> gas
c)
C gas --> solid
d)
D solid --> gas
10.
According to the energy diagrams, this chemical reaction the process is ...
a)
endothemic, heat released
b)
endothermic, heat absorbed
c)
exothermic, heat released
d)
exothermic, heat absorbed
11.
Which particle diagram represents a partially melted liquid?
a)
A
b)
B
c)
C
d)
D
12.
Which amount of salt added to 100gHOH will create a saturated solution at 700C?
a)
15g of KNO3
b)
15g of NaCl
c)
46g of NaNO3
d)
46g of KCl
13.
When 10L of gas at 1 atm is compressed to 3L at constant temperature, what property of the gas changes?
a)
the number of moles decreases
b)
the mass of the gas increases
c)
the size of the gas particles decreases
d)
the pressure of the gas increases
14.
Calculate the molarity of 116g of NaCl dissolved into a total volume of 3L of solution.
a)
0.66M
b)
2M
c)
3M
d)
38M
15.
What type of mixture results when sugar is completely dissolved in water?
a)
compound
b)
colloid
c)
solution
d)
suspension
16.
Which statement is true about mixtures?
a)
Mixtures must be separated physically
b)
Mixtures must be separated chemically
17.
Which statement is true about compounds?
a)
Compound must be separated physically
b)
Compound must be separated chemically
18.
During cold months, tire pressure needs to be readjusted because...
a)
pressure drops in response to decrease in temperature
b)
pressure increases in response to decrease in temperature
c)
volume of air increases in response to decrease in temperature
d)
pressure increases in response to increase in temperature
19.
Analyze the following situations for evidence of a chemical reaction. Select the one that is NOT a chemical reaction.
a)
salt dissolving in water
b)
acid corroding metal
c)
hydrogen gas generator
d)
hydrocarbon combustion
20.
If a window cleaner turns litmus paper blue, classify the type of substance...
a)
acid
b)
neutral
c)
base
21.
Convert 0.80mole NaCl into mass.
a)
47g
b)
59g
c)
73g
d)
105g
22.
Which statement best describes when 2 substance form a covalent bond?
a)
2 non-metals combine because they share valence e-
b)
2 non-metals combine because they share IE
c)
2 metals combine because they share valence e-
d)
a metal and a non-metal combine because they share valence e-
23.
Convert grams from 45g Li2O
a)
1
b)
2
24.
Which equation is correctly balanced?
a)
A
b)
B
c)
C
d)
D
25.
Which is the correct formula for calcium chloride?
a)
CaCl
b)
CaCl2
c)
Ca2Cl2
d)
Ca2Cl
26.
Which equation is a single replacement reactions?
a)
A
b)
B
c)
C
d)
D
27.
How many grams of sodium azide (NaN3) are required to produce 2L of Nitrogen gas at STP?
a)
1.9g
b)
2.5g
c)
3.9g
d)
5.8g
28.
Which equation is the correct reaction for calcium (Ca) reacting with oxygen (O2) to produce calcium oxide (CaO)?
a)
A
b)
B
c)
C
d)
D
29.
Predict the product of the decomposition of AgCl?
a)
A
b)
B
c)
C
d)
D
30.
When solutions of calcium chloride and potassium phosphate are mixed a white precipitate forms. This type of reaction is best classified as....
a)
Composition
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
31.
What is the name of the compound N2O5?
a)
A
b)
B
c)
C
d)
D
32.
Predict the products of Mg + Cl2 --> ???
a)
A
b)
B
c)
C
d)
D
33.
How many grams of copper can be produced from 0.5mol Al in the following single replacement reaction?
a)
21g
b)
42g
c)
48g
d)
54g
34.
Which graph represents the half life of a radioactive isotope? (X= time, Y= %remaining)
a)
A
b)
B
c)
C
d)
D
35.
Who determined the center of the atom is very small and very dense? He used gold foil in his experiment.
a)
Milikan
b)
Rutherford
c)
Shrodinger
d)
Bohr
36.
Phase chases are _______. Heating curve for water is ______ reaction
a)
chemical change / endothermic
b)
chemical change / endothermic
c)
physical change / endothermic
d)
physical change / exothermic
37.
Which ratios are needed to convert from g (reactant) --> g (product) ?
a)
g-->mol mol-->mol mol-->g
b)
g-->mol mol-->mol mol-->L
c)
g-->mol mol-->mol mol-->Na
d)
g-->mol mol-->g
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