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Gorskium Final Exam Review Chemistry Flashcards | StudBud
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Gorskium Final Exam Review Chemistry
Gorskium Final Exam Review Chemistry
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Final exam review for College Prep Chemistry
Flashcards
25 cards
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Practice quiz
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Host live
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Questions
25
Answers
1
What type of a reaction is this: 2 Fe + 3 Cl₂ → 2 FeCl₃?
single-replacement
synthesis
combustion
decomposition
2
Which of the following covalent bonds is
most polar
?
H-C
H-H
H-F
H-N
3
The shape of methane, CH
4
, is:
trigonal planar
tetrahedral
bent
square
4
A covalent bond in which electrons are shared unequally is:
Polyatomic
Polar
Ionic
A double bond
5
How many valence electrons are in an atom of
magnesium
?
4
5
2
3
6
The equation
Mg + 2HCl -> MgCl
2
+ H
2
is an example of what type of reaction?
combination
single-replacement
decomposition
double-replacement
7
What is the chemical name for the compound with the formula Na
2
S?
Sodium fluoride
Magnesium fluoride
Lithium Oxide
Sodium Sulfide
8
What is the formula for
sodium nitride
?
Na3N
NaN
NaN3
Na2N
9
What causes dipole-dipole interaction?
bonding of a covalently bonded hydrogen to electrons
attractions between ions
sharing electron pairs
attractions between polar molecules
10
What is the coefficient for HCl in the equation: __Mg + __HCl → MgCl₂ + H₂
6
2
1
3
11
When is your final?
Next Friday
Monday
Today
Tomorrow
12
In the reaction 2CO + O₂ → 2CO₂,what is the ratio of moles of
oxygen
to moles of CO₂?
1:1
1:2
2:1
2:2
13
What type of reaction is this?
2 Al + 3 CuSO₄
→
Al₂(SO₄)
3
+ 3 Cu
combustion
synthesis
single replacement
decomposition
14
Which of the following elements does
NOT
form an ion with a charge of +1?
potassium
sodium
fluorine
hydrogen
15
What type of reaction is this?
2 H
2
+ O
2
→
2 H
2
O
decomposition
double replacement
combustion
synthesis
16
What are the coefficients that will balance the equation? ___N
2
+ ___H
2
→ ___NH
3
1,3,3
1,1,2
3,1,2
1,3,2
17
A chemical bond that is formed when two atoms share electrons is called a(n):
polyatomic bond
ionic bond
compound
covalent bond
18
Hydrogen bonding, which is found in H₂O, is the weakest Intermolecular Force of Attraction (FOA)
True
False
19
The octet rule states that, in chemical compounds, atoms tend to have;
more protons than electrons
the electron configuration of a noble gas
more electrons than protons
eight electrons in their principal energy level
20
What is a double bond?
One pair of electrons shared between two atoms
Two pairs of electrons shared between four atoms
Two pairs of electrons shared between two atoms
A bond between two atoms and six electrons
21
The equation H
3
PO
4
+ 3KOH → K
3
PO
3
+ 3H
2
O is what type of reaction?
single-replacement
decomposition
double-replacement
synthesis
22
Which of the forces of intermolecular attraction are the weakest?
hydrogen bonding
ionic bonding
dipole-dipole
london dispersion
23
How many valence electrons are in an atom of
phosphorus
?
3
2
5
4
24
N₂ is an example of a molecule with a triple bond
False
True
25
What type of reaction is this?
CH
4
+ 2 O
2
→
2 H
2
O + CO
2
combustion
synthesis
single replacement
double replacement
