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Applied Chem Term 2 Final Review Flashcards | StudBud
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Applied Chem Term 2 Final Review
Applied Chem Term 2 Final Review
25 terms
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Periodic trends, bonding, chemical naming, the mole, thermodynamics, nuclear chemistry.
Flashcards
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Questions
25
Answers
1
If the value for q is negative in q = m*C*T, the reaction must be ____.
chemical
exothermic
entropic
endothermic
2
What type of reaction is this? FeO
2
--> Fe + O
2
combustion
double replacement
synthesis
decomposition
3
What type of reaction is this? 2 HBr + Cl
2
--> 2 HCl + Br
2
double replacement
decomposition
single replacement
synthesis
4
This type of reaction
releases
heat.
endothermic
entropic
entalpic
exothermic
5
Which formula is correct for aluminum oxide?
Al2O3
AlO
AlO2
Al3O2
6
What is the molar mass of H
2
O rounded to the nearest whole number?
12
14
16
18
7
If the surroundings become
colder
after a reaction takes place, it must be a ____ reaction.
entropic
chemical
exothermic
endothermic
8
Equations are balanced because they need to follow the _____.
law of matter
law of conservation of mass
laws of physics
law of conservation of energy
9
A formula that is completely reduced (rounded down) is called a(n) ______ formula.
molecular
empirical
chemical
atomic
10
What coefficients are needed to balance this equation? __ H
2
+ __ O
2
--> __ H
2
O
1:2:1
2:1:2
1:1:1
2:1:1
11
Which type of bond uses prefixes in its names?
metallic
ionic
covalent
nuclear
12
To balance an equation, the number of ___ must be the same on each side of the reaction arrow.
compounds
protons
electrons
each type of atom
13
What is the correct formula for dinitrogen trioxide
N205
N2O
NO5
N3O2
14
_____ is determined by adding up the atoms in one mole of a substance.
molar mass
molar sum
weight
molecular average
15
Covalent bonds are made of which type of atoms?
nonmetals only
metalloids only
metals and nonmetals
metals only
16
Which type of bond involves
sharing
electrons?
ionic
covalent
chemical
nuclear
17
_____ is a measure of randomness or disorder in a system.
enthalpy
temperature
heat
entropy
18
What is the % mass of O in H
2
O
11.0%
50 %
88.9%
100%
19
Is the following formula emperical or molecular? C
6
H
12
O
6
empirical
molecular
20
What type of reaction is this? CH
4
+ 2 O
2
--> CO
2
+ 2 H
2
O
synthesis
decomposition
combustion
single replacement
21
_____ is a measure of heat content of a system.
specific heat
enthalpy
temperature
entropy
22
The amount of heat needed to raise the temperature of one gram of a substance by 1
o
C is ______.
enthalpy
temperature
entropy
specific heat
23
What is the name of the following compound C
6
O
4?
carbon tetroxide
hexacarbon tetroxide
hexacarbon oxide
carbon oxide
24
What is the name of the following compound? BaCl
2
barium chloride
barium dichloride
monobarium chloride
barium dichlorine
25
Finding the molar mass of one atom in a compound, then dividing by the total mass is used for:
mole conversions
molar volume
molar mass
percent composition
