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Rock, Paper, Conservation
Test Description: A test of your knowledge of Stoichiometry.
Instructions: Answer all questions to get your test result.
1) This number is known as _____ number.
A
Suess’s
B
Avacado’s
C
Avogadro’s
D
Eldorado’s
2) What is the saying used to remember Avogadro’s number ?
A
6:22 am on October 25
B
October 23 at 6:02 pm
C
6:22 pm on October 20
D
October 23 at 6:22 am
3) The Greek word for element is _____.
A
acropolis
B
episteme
C
elementra
D
stoicheion
4) What law is used in Stoichiometry?
A
Law of Motion
B
Law of Conservation of Matter
C
Law of Conservation of Mass
D
Law of Conservation of Moles
5) Avogadro’s law states that ideal gases should have the same______.
A
volume
B
temperature and pressure
C
All
D
molecules
6) What is the total number of atoms represented in the formula CuSO4 * 5H2O
A
13
B
27
C
21
D
8
7) The coefficients in a chemical equation represent the
A
relative numbers of moles of reactants and products.
B
masses, in grams, of all reactants and products.
C
number of valence electrons involved in the reaction.
D
number of atoms in each compound in a reaction.
8) What does the law of conservation of mass state?
A
The mass of an object can only be converted
B
There is nothing to state the conservation of the mass state.v
C
The mass of an object can only be transformed.
D
The mass of an object cannot be created nor destroyed.
9) Which is the correct formula for nitrogen (1) oxide?
A
N2O3
B
N2O
C
NO
D
NO2
10) If a bottle has 66 grams of Ibuprofen, what is the total mass of Carbon
A
46.99
B
49.96
C
49.69
D
47.96
*select an answer for all questions
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