Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Stoichiometry Unit 9- 2
Test Description: Test Review
Instructions: Answer all questions to get your test result.
1) Which branch of chemistry deals with the mass relationships of elements in compounds and the mass relationships among reactants and products in chemical reactions?
A
stoichiometry
B
chemical kinetics
C
qualitative analysis
D
entropy
2) What is the study of the mass relationships of elements in compounds?
A
percent yield
B
reaction stoichiometry
C
Avogadro's principle
D
composition stoichiometry
3) What is the study of the mass relationships among reactants and products in a chemical reaction?
A
periodic law
B
composition stoichiometry
C
reaction stoichiometry
D
electron configuration
4) Which of the following would be investigated in reaction stoichiometry?
A
the amount of energy released in chemical reactions
B
the mass of potassium required to produce a known mass of potassium chloride
C
the masses of hydrogen and oxygen in water
D
the types of bonds that break and form when acids react with metals
5) A determination of the masses and number of moles of sulfur and oxygen in the compound sulfur dioxide would be studied in
A
reaction stoichiometry
B
composition stoichiometry
C
chemical equilibrium.
D
chemical kinetics
6) Which of the following would NOT be studied in the branch of chemistry called stoichiometry?
A
the mole ratio of aluminum and chlorine in aluminum chloride
B
the mass of carbon produced when a known mass of sucrose decomposes
C
the amount of energy required to break the ionic bonds in calcium fluoride
D
the number of moles of hydrogen that react completely with a known quantity of oxygen
7) A balanced chemical equation allows one to determine the
A
mechanism involved in the reaction.
B
energy released in the reaction.
C
mole ratio of any two substances in the reaction.
D
electron configuration of all elements in the reaction.
8) The coefficients in a chemical equation represent the
A
number of valence electrons involved in the reaction.
B
relative numbers of moles of reactants and products.
C
masses, in grams, of all reactants and products.
D
number of atoms in each compound in a reaction.
9) Each of the four types of reaction stoichiometry problems requires using a
A
mole ratio.
B
table of bond energies.
C
Lewis structure.
D
chart of electron configurations.
10) If one knows the mole ratio of a reactant and product in a chemical reaction, one can
A
decide whether the reaction is reversible.
B
estimate the energy released in the reaction.
C
calculate the mass of the product produced from a known mass of reactant.
D
calculate the speed of the reaction.
11) If one knows the mass and molar mass of reactant A and the molar mass of product D in a chemical reaction, one can determine the mass of product D produced by using the
A
electron configurations of the atoms in A and D.
B
estimating bond energies involved in the reaction.
C
group numbers of the elements of A and D in the periodic table.
D
mole ratio of D to A from the chemical equation.
12) In the chemical reaction wA + xB yC + zD, a comparison of the number of moles of A to the number of moles of C would be a(n)
A
mole ratio.
B
mass ratio.
C
energy proportion.
D
electron ratio.
13) In the chemical equation wA + xB yC + zD, if one knows the mass of A and the molar masses of A, B, C, and D, one can determine
A
the mass of B only.
B
the total mass of C and D only.
C
the total mass of A and B only.
D
the mass of any of the reactants or products.
14) In the reaction N2 + 3H2 2NH3, what is the mole ratio of nitrogen to ammonia?
A
1:3
B
2:3
C
1:2
D
1:1
15) In the reaction 2Al2O3 4Al + 3O2, what is the mole ratio of aluminum to oxygen?
A
10:6
B
3:4
C
4:3
D
2:3
16) In the reaction 2H2 + O2 2H2O, what is the mole ratio of oxygen to water?
A
1:2
B
1:4
C
8:1
D
2:1
17) In the reaction Ca + Cl2 CaCl2, what is the mole ratio of chlorine to calcium chloride?
A
1:2
B
2:3
C
2:1
D
1:1
18) In the reaction Zn + H2SO4 ZnSO4 + H2, what is the mole ratio of zinc to sulfuric acid?
A
1:2
B
1:1
C
3:1
D
1:6
19) In the reaction C + 2H2 CH4, what is the mole ratio of hydrogen to methane?
A
2:1
B
1:2
C
2:4
D
1:1
20) In the reaction N2 + 3H2 2NH3, what is the mole ratio of hydrogen to ammonia?
A
1:1
B
2:1
C
6:8
D
3:2
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2022
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?