WorksheetsChemistry Quiz 2
Total questions: 93
Worksheet time: 47mins
Which of the following is true in general of all cations?
A cation has more protons than electrons
A cation has equal numbers of protons andelectrons.
A cation has more protons than neutrons.
A cation has fewer protons than electrons.
Which is most likely true for an atom with six valence electrons?
It will lose one electron
It will lose two electrons.
It will gain two electrons
It will gain one electron
Which is most likely true for an atom with one valence electron?
It will gain two electrons.
It will lose two electrons.
It will gain one electron.
It will lose one electron.
Which of the following atoms is least likely to form an ion?
magnesium
neon
sodium
fluorine
Which of the following elements is most likely to lose electrons to become a cation?
Cl (Chlorine)
Fe (Iron)
Ar (Argon)
C (Carbon)
Which of the following occurs when a magnesium atom is converted to Mg2+?
The magnesium atom gains two electrons and loses twoprotons.
The magnesium atom gains two electrons.
The magnesium atom loses two electrons and two protons.
The magnesium atom loses two electrons.
What is the name of the species formed when a sodium atom loses an electron?
sodium ion
sodide
sodate
sodium
In the “ous/ic” system which species is named with the “ic” ending?
the less negative anion
the more positive cation
the less positive cation
the more negative anion
What is the common name of Cu+?
cupric ion
copper ion
cuprous ion
cuprate ion
Which of the following endings is generally associated with a monatomic anion?
-ade
-ic
-ate
-ide
What is the relationship between the nitrate ion and the nitrite ion?
The nitrate ion has one less oxygen atom than does the nitrite ion and both have the same charge.
The nitrate ion has one more oxygen atom than does the nitrite ion and both have the samecharge
In addition to having one less oxygen atom than nitrite, nitrate also has a larger negative charge.
In addition to having one more oxygen atom than nitrite, nitrate also has a larger negative charge.
An ionic bond is associated with which of the following?
equal sharing of electrons
unequal sharing of electrons
the transfer of electrons
interactions between nuclei
A covalent bond is associated with which of the following?
the sharing of electrons
interactions between nuclei
the transfer of electrons
all of these
High electronegativities are associated with which type of elements?
metals
metalloids
noble gases
nonmetals
Which pair of species is most likely to form an ionic bond?
two electrically neutral species
two electrically charged species, one positive and one negative
two negatively charged species
two positively charged species
Which of the following situations is most likely to result in formation of a covalent bond?
when two electrically negative species interact
when two nonmetallic elements interact to form a compound
when an electrically positive species interacts with an electrically negative species
when two electrically positive species interact
Which of the following statements is generally true about electronegativity?
Electronegativity decreases as we move left to right and decreases as we move top to bottom.
Electronegativity decreases as we move left to right and increases as we move top to bottom.
Electronegativity increases as we move left to right and decreases as we move top to bottom.
Electronegativity increases as we move left to right and increases as we move top to bottom.
For which of the following pairs are the atoms most likely to form an ionic bond with each other?
calcium and chlorine
carbon and oxygen
chlorine and oxygen
sodium and magnesium
Under which of the following conditions is the A—B bond considered to be ionic?
when A and B have the same electronegativity
when the difference between the electronegativities of the atoms is 1.0
when the difference between the electronegativities of the atoms is 1.5
when the difference between the electronegativities of the atoms is 2.0
What is the formula of the compound formed by potassium and chlorine?
KCl
KCl2
KCl3
K2Cl
What is the formula of the compound formed by calcium and fluorine?
CaF
CaF2
CaF3
Ca2F
What is the formula of the compound formed by an iron(III) ion and oxygen?
FeO
FeO2
Fe2O3
Fe3O2
What is the formula of the compound formed between barium and oxygen?
Ba2O
Ba2O2
BaO2
BaO
Which of the following is the correct way to write the formula of the compound formed between thebarium ion and the sulfate ion?
BaSO4
Ba2SO4
Ba2(SO4)2
Ba(SO4)2
Which of the following is the correct way to write the formula of the compound formed between thecalcium ion and the sulfate ion?
Ca2SO4
Ca2(SO4)2
CaSO4
Ca(SO4)2
What is the formula of the compound formed between the ammonium ion and the carbonate ion?
(NH4)3CO3
(NH4)2CO3
NH4CO3
NH4(CO3)2
What is the correct name for MgO?
monomagnesium monoxide
magnesium monoxide
magnesium oxide
magnesium oxygen
What is the correct name for BaI2?
barium iodide
barium diiodide
monobarium diiodide
barium iodine
What is the correct name for KCl?
monopotassium monochloride
potassium chlorine
potassium chloride
potassium ion chloride ion
What is the correct formula for sodium fluoride?
NaFI2
Na2F
Na2F2
NaF
The term “limelight” is derived from the old name for calcium oxide. What is the formula of calciumoxide?
CaO2
CaO
Ca2O
Ca2O2
What is the correct formula for aluminum oxide?
AlO
AlO2
Al2O
Al2O3
The chemical formula of rust is Fe2O3. Which of the following is the correct systematic name for this compound?
iron(III) oxide
diiron trioxide
iron oxide
iron(II) oxide
What is the correct name for Al2(SO4)3?
aluminum sulfoxide
aluminum sulfate
aluminum trisulfate
dialuminum trisulfate
FeSO4 is commonly used to treat iron deficiency. Which of the following is the correct name for this compound?
iron(III) sulfate
iron(II) sulfate
iron sulfur tetroxide
iron sulfate
A compound used in the treatment of manic depression has the formula Li2CO3. Which of thefollowing is the correct name for this compound?
dilithium carbonate
lithium carbon trioxide
lithium carbonate
lithium carboxide
What is the correct name for NH4NO3, a compound found in fertilizers?
ammonia nitrate
ammonium nitrate
ammonia nitrite
ammonium nitrite
How many electrons are associated with a single bond?
6
1
4
2
How many electrons are associated with a triple bond?
6
3
2
4
How many bonds does a carbon atom typically form?
8
6
4
2
Ethylene has the formula C2H4. Which of the following is a correct description of ethylene?
Ethylene has only single bonds
Ethylene has one double bond
Ethylene has one triple bond
None of these is correct
Acetylene has the formula C2H2. Which of the following is a correct description of acetylene?
Acetylene has only single bonds.
Acetylene has one double bond.
Acetylene has one triple bond.
None of these is correct.
When we name a molecular binary compound which of the following is true?
We name the more electronegative element first.
We name the elements in alphabetical order.
The element which has more atoms in the molecule is named first.
We name the less electronegative element first.
Laughing gas, sometimes called nitrous oxide, has the formula N2O. What is the proper chemicalname for nitrous oxide?
dinitrogen oxide
nitrogen oxide
nitrogen dioxide
dinitrogen oxygen
What is the name of NO2?
nitrogen oxygen
nitrogen dioxide
nitrogen oxide
nitrous oxide
What is the correct chemical name for a compound with the formula N2O3?
nitrogen oxide
nitrogen trioxide
nitrogen ozide
dinitrogen trioxide
What is the name of SCl2?
sulfur dichloride
monosulfur chloride
sulfur chloride
sulfur chlorine
What is the systematic name of CS2?
carbon disulfur
carbon(IV) sulfide
carbon sulfide
carbon disulfide
What is the correct name for XeF4?
xenon fluoride
xenon hexafluoride
xenon tetrafluoride
xenon difluoride
Which of the following is the correct formula for dinitrogen trioxide?
N2O3
N3O2
O2N3
O3N2
Which of the following is the correct formula for dinitrogen pentoxide?
N5O2
N2O5
O5N2
O2N5
Which of the following is most likely the type of bonding in this compound?
polar covalent
nonpolar covalent
electronegative
ionic
1a. The reactants in a chemical reaction are analogous to which of the following?
a baked cake
the flour, eggs, chocolate used to bake a cake
both a and b
neither a nor b
2a. Which of the following is the correct unit for formula weight?
ounces
atomic mass units
pounds
grams
3a. The mass of an atom of 12C is exactly 12 atomic mass units. Which of the following describes a moleof 12C atoms?
a sample which contains 6.02 × 1023 atoms of 12C
a sample which weighs exactly 12 atomic mass units
neither a nor b
both a and b
4a. What is the molar mass of water, H2O?
17.01 amu
18.02 amu
18.02 g
17.01 g
5a. What is the molar mass of glucose, C6H12O6?
60.05 amu
180.2 amu
60.05 g
180.2 g
6a. How many molecules are present in one mole of water, H2O?
6.02 × 10^23
3.24 × 10^23
3.00 × 10^–23
1.66 × 10^–24
7a. A person drinks 1.50 × 103 g of water, H2O, per day. How many moles is this?
0.0120
8.33
83.3
1.20 × 10^2
8a. How many moles of marble, CaCO3, are there in a 275 g piece of marble?
2.75
4.57 × 10^–22
275
0.364
9a. If you need a sample of 2.84 mol of Na2S, how many grams do you need?
0.00451 g
222 g
78.1 g
2.84 g
10a. How much does a sample of 5.75 mol diethyl ether, C4H10O, weigh?
5.75 g
12.9 g
74.1 g
426 g
11a. How many hydrogen atoms are there in 2.50 mol of C6H12O6?
1.81 × 10^25
1.51 × 10^24
2.50
12.0
12a. How many oxygen atoms are present in 5.20 mol of Al2(SO4)3?
3.13 × 10^24
62.4
3.76 × 10^25
9.39 × 10^24
13a. How many moles of hydrogen atoms are there in 2.50 mol of C6H12O6?
1.81 × 10^25
30.0
2.50
1.51 × 10^24
14a. You have a sample of 3.01 × 10^23 atoms of silver. How much does this sample weigh?
0.0500 g
2.00 g
107.9 g
53.9 g
15a. You have a sample of 1.204 × 10^24 atoms of gold. How much does this sample weigh?
98.5 g
2.000 g
197.0 g
394.0 g
16a. A typical deposit of cholesterol, C27H46O, in an artery has a mass of 3.90 mg. How many moleculesof cholesterol are present in this deposit?
6.07 × 10^21
6.07 × 10^18
1.65 × 10^–22
0.00390
17a. A serving of a particular fruit dessert contains 20.0 g of sugar. If all the sugar is sucrose, C12H22O11,how many molecules of sugar are present in this serving?
0.0584
17.1
3.52 × 10^22
1.03 × 10^25
18a. Which of the following is true of a chemical reaction?
In a chemical reaction, the mass of the products always equals the mass of the starting materialsthat have reacted.
In a chemical reaction, the number of moles of product always equals the number of moles ofreactants.
Both a and b are true
Both a and b are false
19a. Which of the following is true of a balanced chemical reaction?
In a balanced chemical equation, number of molecules on the reactant side equals the number of molecules on the product side.
In a balanced chemical equation, the number of atoms on the reactant side equals the number of atoms on the product side.
Both a and b are true.
Both a and b are false.
20a. Which of the following is the correct set of integer coefficients for the balanced equation,respectively:___ CO2(g) + ___H2O(l) → ___C6H12O6(aq) + ___O2(g)
1,1,1,1
3,3,6,6
6,3,3,6
6,6,1,6
21a. Which of the following is the correct set of integer coefficients for the balanced equation,respectively:___ C6H14(g) + ___O2(g) → ___CO2(g) + ___H2O(g)
1,1,1,1
1,3,6,7
2,19,12,14
1,9.5,6,7
22a. Which of the following is the correct set of integer coefficients for the balanced equation respectively:___ C5H12(g) + ___O2(g) → ___CO2(g) + ___H2O(g)
1,8,5,6
1,5,5,6
5,1,8,6
5,12,2,4
23a. Which of the following is the correct set of integer coefficients for the balanced equation,respectively:___ C3H8(g) + ___O2(g) → ___CO2(g) + ___H2O(g)
3,8,1,2
1,5,3,4
1,5,4,3
4,3,2,1
24a. The balanced equation 3 H2(g) + N2(g) → 2 NH3(g) means which of the following?
Three grams of hydrogen react with one gram of nitrogen to form two grams of ammonia.
Three moles of hydrogen react with one mole of nitrogen to form two moles of ammonia
The equation means both a and b.
The equation means neither a nor b.
25a. The balanced equation N2(g) + 2 O2(g) → 2 NO2(g) means which of the following?
One mole of nitrogen reacts with two moles of oxygen to form two moles of nitrogen dioxide.
One gram of nitrogen reacts with two grams of oxygen to form two grams of nitrogen dioxide.
The equation means both a and b.
The equation means neither a nor b.
26a. Sodium sulfite, Na2SO3(aq), is added to wine as an antioxidant since it reacts with the oxygen of theair to form sodium sulfate, Na2SO4(aq). Which of the following is the balanced equation for this reaction?
Na2SO3(aq) + O(g) → Na2SO4(aq)
Na2SO3(aq) + 2 O(g) → Na2SO4(aq)
2 Na2SO3(aq) + O2(g) → 2 Na2SO4(aq)
Na2SO3(aq) + O2(g) → Na2SO4(aq)
27a. Which of the following is true regarding mass relationships in a chemical reaction?
To determine mass relationships in a chemical reaction, you first need to know the balanced chemical equation for the reaction.
To convert from grams to moles and vice versa, you need to use Avogadro’s number as aconversion factor.
Both a and b are true.
Both a and b are false.
28a. For the reaction N2(g) + 3 H2(g) → 2 NH3(g) which of the following can be determined using onlythe coefficients of the balanced chemical equation?
the number of molecules of NH3 obtained if 4.2 mol of N2 react completely to form NH3
the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3
both a and b
neither a nor b
29a. In the industrial synthesis of acetic acid, methanol is reacted with carbon monoxide. The balanced equation for this reaction is:CH3OH(g) + CO(g) → CH3COOH(l). If ethanol is present in excess, how many moles of CO(g) are required to produce 16.6 moles of aceticacid?
16.6
8.30
28.0
33.2
30a. Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is:C2H4(g) + H2O(g) → C2H5OH(l)If water is present in excess, how many moles of ethanol can be produced from 7.24 mol of ethylene?
28.0
46.0
14.5
7.24
31a. In the industrial synthesis of acetic acid, methanol is reacted with carbon monoxide. The balanced equation for this reaction is:CH3OH(g) + CO(g) → CH3COOH(l)How many grams of CO(g) are required to produce 16.6 mol of acetic acid?
16.6 g
33.2 g
465 g
996 g
32a. Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is:C2H4(g) + H2O(g) → C2H5OH(l)If water is present in excess, how many grams of ethanol can be produced from 7.24 mol of ethylene?
7.24 g
14.5 g
203 g
334 g
33a. In the industrial synthesis of acetic acid, methanol is reacted with carbon monoxide. The balanced equation for this reaction is:CH3OH(g) + CO(g) → CH3COOH(l)How many grams of CO(g) are required to produce 49.4 g of acetic acid?
23.0 g
28.0 g
60.1 g
88.1 g
34a. Ethanol is produced industrially by the acid catalyzed reaction of ethylene with water. The balanced equation for this reaction is:C2H4(g) + H2O(g) → C2H5OH(l)If water is present in excess, how many grams of ethanol can be produced from 42.7 g of ethylene?
42.7 g
46.1 g
70.1 g
92.2 g
35a. Given the reaction 2 HgO(s) → 2 Hg(l) + O2(g). What weight of elemental mercury will be obtained by the decomposition of 0.125 mol of HgO?
13.5 g
25.0 g
27.0 g
50.0 g
36a. Given the reaction 2 HgO(s) → 2 Hg(l) + O2(g). What weight of elemental mercury will be obtained by the decomposition of 94.5 g of HgO?
43.8 g
78.5 g
87.5 g
175 g
37a. O2 can be produced by the reaction 2 KClO3(s) → 2 KCl(s) + 3 O2(g). In one experiment 0.312 g ofO2 was formed. How much KClO3 was decomposed?
0.484 g
0.797 g
1.19 g
1.79 g
38a. When solutions of AgNO3 and NaCl react, the balanced molecular equation is:AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) How much AgCl is produced when 3.10 g of AgNO3 and 3.10 g of NaCl react?
1.55 g
4.17 g
2.62 g
6.30 g
39a. In a particular experiment to prepare a compound, the theoretical yield is 34.7 g. If the actual yield is 31.2 g, what is the percent yield?
0.899%
11.1%
93.0%
89.9%
40a. Diethyl ether can be made from ethanol. The reaction is:2 C2H5OH(l) → (C2H5)2O(l) + H2O(l) In one experiment 46.0 g of ethanol yielded 34.7 g of diethyl ether. What was the percent yield in this experiment?
93.8%
80.4%
62.1%
97.0%
41a. In an experiment to prepare aspirin, the percent yield was 94.3% g. If the actual yield was 124.3 g,what was the theoretical yield for this experiment?
94.3 g
117 g
132 g
234 g
