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Chemistry Final Semester 2 Review 15-16
Test Description: Allaire year review
Instructions: Answer all questions to get your test result.
1) When 80 g of sodium hydroxide, NaOH, are dissolved in enough water to make 500 mL of solution, the molarity of the solution is
A
2 M
B
1 M
C
4 M
D
8 M
2) The molar mass of a substance is the mass of one
A
gram of the substance
B
atom of the substance
C
mole of the substance
D
liter of the substance
3) If 250.0 mL of a 0.96 M solution of acetic acid are diluted to 800.0 mL, what will be the approximate molarity of the final solution?
A
0.30 M
B
0.24 M
C
0.19 M
D
0.77 M
4) CaCN2 + 3H2O --) CaCO3 + 2NH3 How many grams of H2O are needed to produce 14.6 grams of NH3?
A
9.2 g
B
23.3 g
C
10.3 g
D
165 g
5) What is the difference between carbon monoxide and carbon dioxide?
A
Carbon monoxide has only one oxygen atom
B
Carbon dioxide has only one oxygen atom
C
Carbon dioxide has two carbon atoms.
D
Carbon monoxide has two carbon atoms
6) What is the name of the compound NH4OH?
A
ammonia
B
ammonium hydroxide
C
nitrogen tetrahydrogen hydroxide
D
nitrogen pentahydrogen oxide
7) What is the formula for aluminum oxide?
A
Al3O2
B
Al2O3
C
AlO
D
AlO2
8) As the pressure of a gas at 2 atm is changed to 1 atm at constant temperature, the volume of the gas
A
remains the same
B
increases
C
decreases
D
none of the choices are correct
9) When a substance undergoes a phase change from liquid to solid, which of the following will occur?
A
kinetic energy decreases
B
kinetic energy does not change because the temperature is not changing
C
none of the answers are correct
D
kinetic energy increases
10) Which of the following cannot be broken down into a simpler type of matter by either physical or chemical means?
A
Carbon dioxide
B
Soil
C
Bronze
D
Iron
11) What is the name of the compound formed between strontium ions and nitrogen ions?
A
distrontium trinitride
B
strontium nitride
C
strontium nitrate
D
tristrontium dinitride
12) Atoms of elements in a group on the Periodic Table have similar chemical properties. This similarity is most closely related to the atoms‘
A
number of valence electrons
B
number of principal energy levels
C
atomic numbers
D
atomic masses
13) What is the total number of moles of H2SO4 needed to prepare 5.0 liters of a 2.0 M solution of H2SO4?
A
2.5 mol
B
10 mol
C
20 mol
D
5.0 mol
14) Which substance can be classified as an Arrhenius acid?
A
LiOH
B
NaCl
C
KOH
D
HCl
15) An ion with 5 protons, 6 neutrons, and a charge of 3+ has an atomic number of
A
11
B
3
C
6
D
5
16) Which solution will change red litmus to blue?
A
HCl
B
CH3
C
NaCl
D
LiOH
17) Vinegar is classified as a mixture. What does this tell you about vinegar?
A
Vinegar has a composition that is the same wherever it is found.
B
Vinegar is made of atoms of different elements chemically bonded together.
C
Vinegar is made of atoms of one type of element.
D
Vinegar contains two or more pure substances mixed together.
18) A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg?
A
8.20L
B
195.12 L
C
18.45L
D
0.615L
19) What is the formula for tetraphosphorus trisulfide?
A
P4Si3
B
P4S3
C
4P3S
D
P2S3
20) Calculate the density of the solid block. The mass of the block is 15 grams. The length is 8cm, the height is 5cm, the width is 4cm.
A
0.0938 g/cm3
B
10.7 g/cm3
C
1.13 g/cm3
D
0.882 g/cm3
*select an answer for all questions
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