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WorksheetsSemester 2 Final review
Total questions: 114
Worksheet time: 6hrs 51mins
Ionic bonding occurs between
Metals and Nonmetals
Just Metals
Just Nonmetals
Metals ______ electrons to become ______
lose, cations
lose, anions
gain, cations
gain, anions
Boron has (a) valence electrons
How many electrons does Sulfur want to gain?
1
2
6
7
How many electrons does Aluminum want to lose?
1
2
3
5
What is the correct formula for when K and F bond?
KF
K2F
KF2
K2F3
What is the correct formula for when K and S bond?
KS
K2S
KS2
K2S3
What is the correct formula for when Mg and S bond?
MgS
Mg2S
MgS2
Mg2S3
This image shows the bonding between Lithium and Fluorine. What does the red arrow show?
electrons being shared
electrons being transferred to Fluorine
electrons being transferred to Lithium
electrons being destroyed
Which of the following is NOT a step in forming an ionic bond?
One atom shares its electrons with another one
Opposite charged ions form due to the transfer of electrons
One atom gives electrons to another one
Oppositely charged ions attract
An ionic bond is the attraction between: (Select ALL that apply)
oppositely charged ions
similarly charged ions
metals and nonmetals
neutral atoms
cations and anions
Which of the following is the correct formula for these two ions: Al+3 & S-2
AlS3
Al2S3
Al3S2
Al3S
If I had a cation with a charge of 2+ how would you describe the formation of that ion?
gained 2 electrons
lost 2 electrons
gained 4 electrons
lost 4 electrons
If I had an anion with a charge of 3- how would you describe the formation of that ion?
gained 2 electrons
lost 2 electrons
gained 3 electrons
lost 3 electrons
Which of the following is the correct formula for Sodium Nitride ( [ Na ] + & [ N ] 3- )
NaN3
Na3N
Na2N3
Na3N2
Ionic compounds have
high melting points
low melting points
Ionic compounds are
brittle
flexible
Ionic compounds can conduct electricity
always
as long as they are dissolved in water
as long as they are molten (melted)
never
This type of bonding occurs when atoms share electrons.
chemical
covalent
ionic
metallic
Single bonds are formed when ____ pair(s) of valence electrons are shared.
one
three
two
four
Triple bonds are formed when atoms share _____ pairs of valence electrons.
two
four
three
six
Which of the following would react to form an ionic compound
Copper & Zinc
Boron and Carbon
Fluorine and Lithium
Carbon and Bromine
The melting points of covalent molecules are:
very high
high
medium
low
What is Covalent Bonding?
Bonding that is the result of two nonmetals sharing electrons
Bonding between two metals
Bonding that is the result of a nonmetal and a metal exchanging electrons
Bonding between more than two elements
Which of the following is true about Ionic Bonds? (select ALL TRUE options)
High melting point
Low melting point
Can dissolve in water
Cannot dissolve in water
Can conduct electricity
Which of the following is true about Covalent bonds? (select ALL true options)
High melting point
Low melting point
Cannot conduct electricity
Can conduct electricity
Excellent conductors as solid and liquid due to a sea of delocalised electrons.
covalent
metallic
ionic
The particles responsible for chemical bonding are
protons.
cations.
electrons.
valence electrons.
Which of these are considered properties of metals? (choose ALL that apply)
brittleness
low melting point
luster (shininess)
malleability
ductility
Strontium nitride
SrN
Sr3N2
Sr2N3
N3Sr2
BeI2
Beryllium (II) iodide
Beryllium iodine
Beryllium iodide
Beryllium (I) iodide
Aluminum fluoride
AlF
AlF2
Al3F
AlF3
FePO4
iron phosphite
iron (III) phosphite
iron (III) phosphate
iron (II) phosphite
Nickel (II) hydroxide
NiOH2
NiOH
Ni(OH)2
NiO2
Cr2O3
chromium oxide
chromium hydroxide
chromium (II) oxide
chromium (III) oxide
iron (II) chlorate
Fe2ClO3
FeClO3
Fe(ClO4)2
Fe(ClO3)2
NH4NO3
ammonium nitrite
hydrogen nitrate
ammonium oxide
ammonium nitrate
CuCl
copper chloride
copper (I) chloride
copper (II) chloride
copper (III) chloride
What is the chemical formula for dinitrogen heptachloride?
N2Cl7
2N7Cl
2NCl7
N2Cl5
What is the correct Lewis Dot Structure for ammonia NH3
Which is the correct molecular structure for carbon dioxide?
NH3 has how many lone pairs?
0
1
2
3
CCl4 has how many double bonds?
0
1
2
3
In HCN (Carbon is usually the central atom) what kind of bond is between the C and N
Single
Double
Triple
Which of these is the correct Lewis structure for NH3?
Which is the correct molecular structure for carbon dioxide?
What is the correct shape of CHCl3?
Bent
Trigonal pyramidal
Tetrahedral
Trigonal planar
Matter and mass can not be
Shaken or stirred
Made
created or destroyed
Transferred
Which type of reaction has only one reactant?
synthesis
Double replacement
Chemical reaction
decomposition
4Si + S8 --> 2Si2S4
What type of reaction is this?
Synthesis
Decomposition
Single displacement
Double displacement
What type of reaction is this?
P4 + 3O2 --> 2P2O3
Synthesis
Decomposition
Single displacement
Combustion
AgNO3 + NaCl → AgCl + NaNO3
How many elements are in this chemical formula?
H2SO4
1
2
3
4
How many atoms of Carbon are in this formula? C6 H12O6
6
1
12
Which chemical formula correctly displays 1 atom of nickel and 2 atoms of Fluorine?
niF2
NIF2
Ni1F2
NiF2
The substances that go into a reaction are called the _______.
products
reactants
Which of the following chemical formulas are the reactants?
CH4
CH4 and 2O2
CO2
CO2 and 2H2O
What coefficients are needed to balance the following chemical equation?
__Zn + __HCl → __ZnCl2 + __H2
1,1,1,1
1,2,1,1
2,1,2,2
2,1,2,1
What coefficients are needed to balance the following chemical equation?
__Fe + __ AgNO3 → __ Ag + __ Fe(NO3)3
1,1,1,1
1,2,1,2
1,3,3,1
3,1,3,1
N2+O2--> _NO
Which equation is balanced?
PbO2 + 2H2
SO2 + H20 --> H2SO4
2Na + 2H2O --> 2NaOH + H2
Mg + __HCl ---> MgCl2 + H2
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
What is the molar mass of NaCl?
49.46 g/mol
58.44 g/mol
152.92 g/mol
161.90 g/mol
What is the molar mass of MgF2?
62.31 g/mol
67.62 g/mol
43.31 g/mol
86.62 g/mol
What is the molar mass of Li2O?
22.94 g/mol
29.88 g/mol
45.88 g/mol
38.94 g/mol
What is the molar mass of Al2O3?
42.98 g/mol
69.96 g/mol
85.96 g/mol
101.96 g/mol
What is the molar mass of Al(NO3)3?
62.01 g/mol
88.99 g/mol
151.00 g/mol
213.01 g/mol
What is the molar mass of SrS?
87.62 g/mol
119.69 g/mol
151.76 g/mol
32.07 g/mol
What is the molar mass of CuBr2?
145.23 g/mol
122.54 g/mol
223.35 g/mol
213.54 g/mol
What is the molar mass of (NH4)2S?
57.18 g/mol
68.17 g/mol
32.07 g/mol
17.04 g/mol
Select the correct molar ratio taken from this balanced equation:
4 Al + 3 O2 --> 2 Al2O3
1 mol Al = 1 mol Al2O3
4 Al = 2 Al2O3
4 mol Al = 2 mol Al2O3
4 mol Al = 2 mol Al
Select the correct molar ratio taken from this balanced equation:
1 N2 + 3 H2 --> 2 NH3
1 N2 = 3 H2
1 mol N2 = 2 mol NH3
2 mol N2 = 1 mol NH3
3 mol N2 = 3 mol NH3
4 Al + 3 O2 --> 2 Al2O3
How many moles of Al2O3 will be produced from 250.0 g of Al?
( 26.982 g Al = 1 mol Al)
18.531 mol Al2O3
4.633 mol Al2O3
6.949 mol Al2O3
12.354 mol Al2O3
Consider the equation 2Al(OH)3 --> Al2O3 + 3H2O. How many moles of Al(OH)3 are needed to produce 15 moles of H2O?
3
27.5
7.5
10
Consider the equation 2Al(OH)3 --> Al2O3 + 3H2O. How many moles of Al2O3 must have been produced if 9 moles of water was produced?
6
3
9
12
Consider the equation CaSO4 + 2LiF --> CaF2 + Li2SO4. How many moles of CaSO4 are needed to produce from 3.97 moles of CaF2?
1.99
.993
7.94
3.97
