WorksheetsSemester 1 Chemistry Final
Total questions: 26
Worksheet time: 22mins
Name
Class
Date
1.
Which of the following is NOT an indicator of a chemical change?
a)
Lime forming on your kitchen sink
b)
A car burning gasoline
c)
Putting an ice tray in the refrigerator
d)
Smoke from a forest fire
2.
Which of the following would represent condensation?
a)
When a pot of water boils
b)
An ice cube on the table
c)
When a puddle dries
d)
Droplets that form on the outside of a cold drink
3.
Calculate the percent error. The experimental value is 50.3°C and the accepted value is 50.9°C.
a)
0.8%
b)
1.2%
c)
1.5%
d)
1.7%
4.
Convert 155 inches PER second to miles PER hour:
a)
6.82 miles/hour
b)
6.11 miles/hour
c)
8.8 miles/hour
d)
2.84 miles/hour
5.
According to the density chart, which material would weigh 30.25 grams and have a volume of 2.880 milliliters?
a)
Aluminum
b)
Iron
c)
Silver
d)
Lead
6.
How many milliliters is 6.38 Liters?
a)
6380 mL
b)
0.00638 mL
c)
0.0638 mL
d)
638 mL
7.
Which element does NOT exist as a diatomic element?
a)
Helium
b)
Bromine
c)
Iodine
d)
Oxygen
8.
Which of the following represents a list of metals?
a)
Lithium, Sodium, Oxygen, Tin
b)
Gold, Silver, Mercury, Hydrogen
c)
Iron, Calcium, Zirconium, Lead
d)
Nitrogen, Bromine, Neon, Silver
9.
What would happen to the pressure inside of a balloon if it was filled at 0°C and put into a 140°C oven?
a)
The pressure would remain constant.
b)
The pressure would increase.
c)
The pressure would decrease.
d)
Why would someone do that Mr. Neal?
10.
With this theoretical substance, if you were to start at normal conditions (1 atm and 300°K) what phase change would occur if you were to decrease the temperature?
a)
Condensation
b)
Evaporation
c)
Freezing
d)
Melting
11.
How many grams is 9.32 moles of chromium?
a)
24 grams
b)
485 grams
c)
490 grams
d)
211.5 grams
12.
All atoms of the same element have the same:
a)
number of protons.
b)
number of neutrons.
c)
mass number.
d)
Mass.
13.
What makes up the mass number of an atom?
a)
Protons, electrons, and neutrons
b)
Protons and neutrons
c)
Electrons and neutrons
d)
Protons and electrons
14.
How many neutrons does an atom of Zinc-63 have?
a)
27
b)
33
c)
60
d)
29
15.
In the Periodic Table, elements are ordered:
a)
According to decreasing atomic mass
b)
According to increasing atomic number
c)
According to increasing atomic mass
d)
When they were discovered
16.
How many electrons are found in a O⁻² (oxygen⁻²) anion?
a)
3
b)
7
c)
4
d)
10
17.
The electron configuration of [Kr] 5s² 4d⁹, corresponds to what element?
a)
Nickel
b)
Krypton
c)
Technetium
d)
Silver
18.
What is the molar mass of carbon dioxide?
a)
44 grams/mole
b)
28 grams/mole
c)
40 grams/mole
d)
60 grams/mole
19.
How many atoms of NaOH are in 10 grams?
a)
2.4 x 10²³ atoms
b)
1.5 x 10²³ atoms
c)
1.9 x 10²³ atoms
d)
3.99 x 10²³ atoms
20.
Which of the following is the correct representation of the nitrogen anion?
a)
N⁺²
b)
NO₃⁻¹
c)
N⁻³
d)
Ni⁻²
21.
Using the VSEPR chart, what would be the shape of an NBr₃ molecule?
a)
Trigonal Pyramidal
b)
Linear
c)
Bent
d)
Angular
22.
Which formula is the correct decomposition of lithium carbonate?
a)
Li + CO₂ → O₂ + LiC
b)
LiC → Li + C
c)
LiCO₂ → Li + CO₂
d)
Li₂CO₃ → Li₂O + CO₂
23.
Which of the following reactions WOULD NOT happen? (Hint: Use Reactivity Chart)
a)
3 Sn(s) + 4 AuCl₃(aq) → 3 SnCl₄(aq) + 4 Au(s)
b)
2 Al(s) + 2 H₃PO₄(aq) → 2 AlPO₄(aq) + 3 H₂(g)
c)
Fe(s) + CuCO₃(aq) → FeCO₃(aq) + Cu(s)
d)
Na(s) + KMnO₄(aq) → NaMnO₄(aq) + K(s)
24.
What is the correct name for NF₃?
a)
Nitrogen (III) fluoride
b)
Nitrogen trifouride
c)
Nitrogen fluoride
d)
Mononitrogen trifluoride
25.
Propane (C₃H₈) is used all the time... everywhere... The word equation for complete combustion can be written as:
a)
Propane + oxygen gas ----> carbon + water vapor.
b)
Propane ----> carbon dioxide + water vapor.
c)
Propane + oxygen gas ----> carbon dioxide + water vapor.
d)
Propane + carbon dioxide --> oxygen gas + water vapor.
26.
Balance the following equation: ___MgCl₂ + ___Na₂O --> ___MgO + ___ NaCl
a)
1, 2, 1, 2
b)
2, 1, 1, 2
c)
1, 3, 6, 1
d)
1, 1, 1, 2
100 %
