Question 1

Which of these is not a covalent compound?

Accepted Answer

A)  SiO2 
B)  CH4 
C)  N2O 
D)  CaO 
E)  ICl3 
A)  SiO2 
B)  CH4 
C)  N2O 
D)  CaO 
E)  ICl3 D

Question 2

Which of these is the correct formula for potassium phosphate?

Accepted Answer

A)  KPO4 
B)  K3PO4 
C)  K(PO4)3 
D)  K2(PO4)3 
E)  K3P 
A)  KPO4 
B)  K3PO4 
C)  K(PO4)3 
D)  K2(PO4)3 
E)  K3P B

Question 3

Using the old English measurements of volume listed  below, determine the number of gallons in two  gills.

Accepted Answer

A)  0.0039 gallons 
B)  64 gallons 
C)  0.0625  gallons 
D)  512 gallons 
E)  2304 gallons 
A)  0.0039 gallons 
B)  64 gallons 
C)  0.0625  gallons 
D)  512 gallons 
E)  2304 gallons C

Question 4

Which of these is the correct formula for aluminum oxide?

Accepted Answer

A)  Al2O2 
B)  Al2O3 
C)  AlO 
D)  Al3O2 
E)  AlO2 
A)  Al2O2 
B)  Al2O3 
C)  AlO 
D)  Al3O2 
E)  AlO2

Question 5

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many anteaters can a zoo obtain in exchange for 4 oryxes?

Accepted Answer

A)  6 anteaters 
B)  10 anteaters 
C)  15 anteaters 
D)  20 anteaters 
E)  30 anteaters 
A)  6 anteaters 
B)  10 anteaters 
C)  15 anteaters 
D)  20 anteaters 
E)  30 anteaters

Question 6

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P  4  react with oxygen gas in the given equation?
​
P4 + 5 O2 → P4O10

Accepted Answer

A)  0.825 moles 
B)  3.3 moles 
C)  13.2 moles 
D)  16.5 moles 
E)  20 moles 
A)  0.825 moles 
B)  3.3 moles 
C)  13.2 moles 
D)  16.5 moles 
E)  20 moles

Question 7

How many moles of calcium atoms are there in 2.5 moles of calcium carbonate, CaCO3?

Accepted Answer

A)  1 mole 
B)  1.25 moles 
C)  2.5 moles 
D)  5.0 moles 
E)  100 moles 
A)  1 mole 
B)  1.25 moles 
C)  2.5 moles 
D)  5.0 moles 
E)  100 moles

Question 8

Automotive airbags inflate when a sample of NaN  3  (molar mass = 65 g/mol) is rapidly decomposed. What mass of NaN  3  is required to produce 368 L of nitrogen gas (molar mass = 28 g/mol) with a density of 1.25 g/L?
​
2 NaN3(s) → 2 Na(s) + 3 N2(g)

Accepted Answer

A)  228 g 
B)  712 g 
C)  1709 g 
D)  2136 g 
E)  3203 g 
A)  228 g 
B)  712 g 
C)  1709 g 
D)  2136 g 
E)  3203 g

Question 9

Which of these statements is incorrect ?

Accepted Answer

A)  Covalent bonds involve the combination of two nonmetals. 
B)  Covalent compounds dissolve in water to form electrolyte solutions. 
C)  Covalent compounds contain atoms that share electrons to gain stability. 
D)  Molecules are represented by a specific kind of chemical formula called a molecular formula. 
E)  Molecular compounds are composed of clusters of two or more atoms bonded together. 
A)  Covalent bonds involve the combination of two nonmetals. 
B)  Covalent compounds dissolve in water to form electrolyte solutions. 
C)  Covalent compounds contain atoms that share electrons to gain stability. 
D)  Molecules are represented by a specific kind of chemical formula called a molecular formula. 
E)  Molecular compounds are composed of clusters of two or more atoms bonded together.

Question 10

Using the old English measurements of volume listed below, determine the number of noggins in one butt.

Accepted Answer

A)  104.92 noggins 
B)  128.00 noggins 
C)  209.83 noggins 
D)  1678.7 noggins 
E)  3357.3 noggins 
A)  104.92 noggins 
B)  128.00 noggins 
C)  209.83 noggins 
D)  1678.7 noggins 
E)  3357.3 noggins

Question 11

What is the formula mass of PCl3?

Accepted Answer

A)  66.5 amu 
B)  106.5 amu 
C)  137.5 amu 
D)  180 amu 
E)  360 amu 
A)  66.5 amu 
B)  106.5 amu 
C)  137.5 amu 
D)  180 amu 
E)  360 amu

Question 12

How many grams of water are produced when 10.0 grams of O2 react with excess H2?
​
2 H2 + O2(g) → 2 H2O

Accepted Answer

A)  11.25 grams 
B)  20 grams 
C)  46 grams 
D)  180 grams 
E)  360 grams 
A)  11.25 grams 
B)  20 grams 
C)  46 grams 
D)  180 grams 
E)  360 grams

Question 13

Which of these is the correct name for Li2SO4?

Accepted Answer

A)  Lithium sulfide 
B)  Dilithium sulfide 
C)  Dilithium tetrasulphate 
D)  Lithium sulfate 
E)  Dilithium tetrasulfide 
A)  Lithium sulfide 
B)  Dilithium sulfide 
C)  Dilithium tetrasulphate 
D)  Lithium sulfate 
E)  Dilithium tetrasulfide

Question 14

What is the formula mass of Propane (C3H8)?

Accepted Answer

A)  44.1 amu 
B)  65.6 amu 
C)  92.4 amu 
D)  112.8 amu 
E)  164.8 amu 
A)  44.1 amu 
B)  65.6 amu 
C)  92.4 amu 
D)  112.8 amu 
E)  164.8 amu

Question 15

What is the correct name for the compound AgNO3?

Accepted Answer

A)  Silver trinitrate 
B)  Silver nitrate 
C)  Silver nitrogen oxide 
D)  Silver nitrogen 
E)  Silver nitrotrioxide 
A)  Silver trinitrate 
B)  Silver nitrate 
C)  Silver nitrogen oxide 
D)  Silver nitrogen 
E)  Silver nitrotrioxide

Question 16

What is the mass in grams of  2.35 moles of calcium carbonate, CaCO3?

Accepted Answer

A)  0.01175 grams 
B)  0.0235 grams 
C)  0.0588 grams 
D)  107 grams 
E)  235 grams 
A)  0.01175 grams 
B)  0.0235 grams 
C)  0.0588 grams 
D)  107 grams 
E)  235 grams

Question 17

Using the old English measurements of volume listed  below, determine the number of hogsheads in five  kilderkins.

Accepted Answer

A)  1.72 hogsheads 
B)  2.91 hogsheads 
C)  90 hogsheads 
D)  4,721 hogsheads 
E)  42,489 hogsheads 
A)  1.72 hogsheads 
B)  2.91 hogsheads 
C)  90 hogsheads 
D)  4,721 hogsheads 
E)  42,489 hogsheads

Question 18

How many moles of carbon atoms are there in 5 moles of ethanol (CH3CH2OH)?

Accepted Answer

A)  2.5 moles 
B)  5 moles 
C)  10 moles 
D)  30 moles 
E)  120 moles 
A)  2.5 moles 
B)  5 moles 
C)  10 moles 
D)  30 moles 
E)  120 moles

Question 19

What is the correct name of K2O?

Accepted Answer

A)  Dipotassium dioxide 
B)  Potassium dioxide 
C)  Potassium monoxide 
D)  Potassium oxygen 
E)  Potassium oxide 
A)  Dipotassium dioxide 
B)  Potassium dioxide 
C)  Potassium monoxide 
D)  Potassium oxygen 
E)  Potassium oxide

Question 20

Which of these substances is a compound?

Accepted Answer

A)  Na 
B)  Cl2 
C)  Pb 
D)  NO 
E)  H2 
A)  Na 
B)  Cl2 
C)  Pb 
D)  NO 
E)  H2

Which of these is not a covalent compound?

Which of these is the correct formula for potassium phosphate?

Using the old English measurements of volume listed below, determine the number of gallons in two gills.

Which of these is the correct formula for aluminum oxide?

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many anteaters can a zoo obtain in exchange for 4 oryxes?

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P ₄ react with oxygen gas in the given equation? P₄ + 5 O₂ → P₄O₁₀

How many moles of calcium atoms are there in 2.5 moles of calcium carbonate, CaCO₃?

Automotive airbags inflate when a sample of NaN ₃ (molar mass = 65 g/mol) is rapidly decomposed. What mass of NaN ₃ is required to produce 368 L of nitrogen gas (molar mass = 28 g/mol) with a density of 1.25 g/L? 2 NaN₃(s) → 2 Na(s) + 3 N₂(g)

Which of these statements is incorrect ?

Using the old English measurements of volume listed below, determine the number of noggins in one butt.

What is the formula mass of PCl₃?

How many grams of water are produced when 10.0 grams of O₂ react with excess H₂? 2 H₂ + O₂(g) → 2 H₂O

Which of these is the correct name for Li₂SO₄?

What is the formula mass of Propane (C₃H₈)?

What is the correct name for the compound AgNO₃?

What is the mass in grams of 2.35 moles of calcium carbonate, CaCO₃?

Using the old English measurements of volume listed below, determine the number of hogsheads in five kilderkins.

How many moles of carbon atoms are there in 5 moles of ethanol (CH₃CH₂OH)?

What is the correct name of K₂O?

Which of these substances is a compound?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

Exam 4: Molecules, Compounds, and Chemical Reactions

Which of these is not a covalent compound?

Which of these is the correct formula for potassium phosphate?

Using the old English measurements of volume listed below, determine the number of gallons in two gills.

Which of these is the correct formula for aluminum oxide?

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many anteaters can a zoo obtain in exchange for 4 oryxes?

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P 4 react with oxygen gas in the given equation? ​ P4 + 5 O2 → P4O10

How many moles of calcium atoms are there in 2.5 moles of calcium carbonate, CaCO3?

Automotive airbags inflate when a sample of NaN 3 (molar mass = 65 g/mol) is rapidly decomposed. What mass of NaN 3 is required to produce 368 L of nitrogen gas (molar mass = 28 g/mol) with a density of 1.25 g/L? ​ 2 NaN3(s) → 2 Na(s) + 3 N2(g)

Which of these statements is incorrect ?

Using the old English measurements of volume listed below, determine the number of noggins in one butt.

What is the formula mass of PCl3?

How many grams of water are produced when 10.0 grams of O2 react with excess H2? ​ 2 H2 + O2(g) → 2 H2O

Which of these is the correct name for Li2SO4?

What is the formula mass of Propane (C3H8)?

What is the correct name for the compound AgNO3?

What is the mass in grams of 2.35 moles of calcium carbonate, CaCO3?

Using the old English measurements of volume listed below, determine the number of hogsheads in five kilderkins.

How many moles of carbon atoms are there in 5 moles of ethanol (CH3CH2OH)?

What is the correct name of K2O?

Which of these substances is a compound?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P ₄ react with oxygen gas in the given equation? P₄ + 5 O₂ → P₄O₁₀

How many moles of calcium atoms are there in 2.5 moles of calcium carbonate, CaCO₃?

Automotive airbags inflate when a sample of NaN ₃ (molar mass = 65 g/mol) is rapidly decomposed. What mass of NaN ₃ is required to produce 368 L of nitrogen gas (molar mass = 28 g/mol) with a density of 1.25 g/L? 2 NaN₃(s) → 2 Na(s) + 3 N₂(g)

What is the formula mass of PCl₃?

How many grams of water are produced when 10.0 grams of O₂ react with excess H₂? 2 H₂ + O₂(g) → 2 H₂O

Which of these is the correct name for Li₂SO₄?

What is the formula mass of Propane (C₃H₈)?

What is the correct name for the compound AgNO₃?

What is the mass in grams of 2.35 moles of calcium carbonate, CaCO₃?

How many moles of carbon atoms are there in 5 moles of ethanol (CH₃CH₂OH)?

What is the correct name of K₂O?