Question 1

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P4 react with oxygen gas?
P4 + 5O2 → 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 2

When properly balanced, what will the coefficients be in the equation, respectively?
​
__Mg + __N2 → __Mg3N2

Accepted Answer

A) 1,1,1 
B) 3,2,1 
C) 3,1,1 
D) 3,1,2 
E) None of the above 
A) 1,1,1 
B) 3,2,1 
C) 3,1,1 
D) 3,1,2 
E) None of the above

Question 3

Barium fluoride is often used in glass manufacturing. Which of these is the correct formula and bonding type for barium fluoride?

Accepted Answer

A) BaF, ionic 
B) BaF, covalent 
C) BaF2, ionic 
D) BaF2, covalent 
E) Ba2F, ionic 
A) BaF, ionic 
B) BaF, covalent 
C) BaF2, ionic 
D) BaF2, covalent 
E) Ba2F, ionic

Question 4

Which of these is an ionic compound?

Accepted Answer

A) AlCl3 
B) H2O 
C) SiO2 
D) IBr 
E) S8 
A) AlCl3 
B) H2O 
C) SiO2 
D) IBr 
E) S8

Question 5

Which of these is the correct name for MgCl2?

Accepted Answer

A) Magnesium chloride 
B) Magnesium chlorine 
C) Magnesium dichloride 
D) Magnesium monochloride 
E) Monomagnesium dichloride 
A) Magnesium chloride 
B) Magnesium chlorine 
C) Magnesium dichloride 
D) Magnesium monochloride 
E) Monomagnesium dichloride

Question 6

Nonmetals tend to ____ electrons and form ions with a ____ charge.

Accepted Answer

A) lose, positive 
B) lose, negative 
C) gain, positive 
D) gain, negative 
E) lose , zero 
A) lose, positive 
B) lose, negative 
C) gain, positive 
D) gain, negative 
E) lose , zero

Question 7

For the reaction:    4NH3 + 5O2 ® 6H2O + 4NO
If 2.5 moles of NH3 is reacted with 3.0 moles of O2, what is the limiting reagent?

Accepted Answer

A) NH3 
B) O2 
C) H2O 
D) NO 
A) NH3 
B) O2 
C) H2O 
D) NO

Question 8

How many moles of nitrogen atoms are in 12 moles of NH4NO3?

Accepted Answer

A) 6 mole 
B) 12 moles 
C) 14 moles 
D) 24 moles 
E) 28 moles 
A) 6 mole 
B) 12 moles 
C) 14 moles 
D) 24 moles 
E) 28 moles

Question 9

How many moles of oxygen atoms are in a 0.6163 grams of niacin, C6H5NO2?

Accepted Answer

A) 5.14 × 10 − 2 moles 
B) 3.00 × 10 − 2 moles 
C) 1.00 × 10 − 2 moles 
D) 5.01 × 10 − 3 moles 
E) 8.56 × 10 − 3 moles 
A) 5.14 × 10 − 2 moles 
B) 3.00 × 10 − 2 moles 
C) 1.00 × 10 − 2 moles 
D) 5.01 × 10 − 3 moles 
E) 8.56 × 10 − 3 moles

Question 10

What is the coefficient in front of HF when the equation is balanced?
__ B2O3 + __ HF → __ BF3 + __ H2O

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 5 
E) 6 
A) 1 
B) 2 
C) 3 
D) 5 
E) 6

Question 11

Which of these will not form a positive ion in an ionic compound?

Accepted Answer

A) Ba 
B) Rb 
C) P 
D) Sn 
E) Mg 
A) Ba 
B) Rb 
C) P 
D) Sn 
E) Mg

Question 12

Which of these is the correct name for NaHCO3?

Accepted Answer

A) Sodium carbonate 
B) Sodium trioxide 
C) Sodium monocarbide 
D) Sodium bicarbonate 
E) Sodium carbide oxide 
A) Sodium carbonate 
B) Sodium trioxide 
C) Sodium monocarbide 
D) Sodium bicarbonate 
E) Sodium carbide oxide

Question 13

How many moles of calcium atoms are 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 14

Metals tend to ____ electrons and form ions with a ____ charge.

Accepted Answer

A) lose, positive 
B) lose, negative 
C) gain, positive 
D) gain, negative 
E) lose , zero 
A) lose, positive 
B) lose, negative 
C) gain, positive 
D) gain, negative 
E) lose , zero

Question 15

Which of these is the correct SUM of the coefficients when the equation is balanced?
__ CaCl2(aq)+ __ K2CO3(aq)→ __ KCl(aq)+ __ CaCO3(s)

Accepted Answer

A) 2 
B) 4 
C) 5 
D) 8 
E) 10 
A) 2 
B) 4 
C) 5 
D) 8 
E) 10

Question 16

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

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 17

How many moles of hydrogen atoms are in 3 moles of codeine, C18H21NO3?

Accepted Answer

A) 3 mole 
B) 21 moles 
C) 36 moles 
D) 54 moles 
E) 63 moles 
A) 3 mole 
B) 21 moles 
C) 36 moles 
D) 54 moles 
E) 63 moles

Question 18

Determine the number of moles in a 1.95 × 10 − 2 gram sample of the amino acid glycine, CH2(NH2)CO2H.

Accepted Answer

A) 2.6 × 10 − 4 moles 
B) 2.6 × 10 − 2 moles 
C) 1.46 moles 
D) 2.0 × 10 − 2 moles 
E) 3.85 × 10 − 1 moles 
A) 2.6 × 10 − 4 moles 
B) 2.6 × 10 − 2 moles 
C) 1.46 moles 
D) 2.0 × 10 − 2 moles 
E) 3.85 × 10 − 1 moles

Question 19

Which of these is not a covalent compound?

Accepted Answer

A) H2O 
B) TeCl4 
C) XeF4 
D) C2H2 
E) AlCl3 
A) H2O 
B) TeCl4 
C) XeF4 
D) C2H2 
E) AlCl3

Question 20

What is the coefficient in front of oxygen (O2)when the equation is balanced?
__ C3H8 + __ O2 → __ CO2 + __ H2O

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 10 
A) 2 
B) 3 
C) 4 
D) 5 
E) 10

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P₄ react with oxygen gas? P₄ + 5O₂ → P₄O₁₀

When properly balanced, what will the coefficients be in the equation, respectively? Mg + N₂ → __Mg₃N₂

Barium fluoride is often used in glass manufacturing. Which of these is the correct formula and bonding type for barium fluoride?

Which of these is an ionic compound?

Which of these is the correct name for MgCl₂?

Nonmetals tend to electrons and form ions with a charge.

For the reaction: 4NH₃ + 5O₂ ® 6H₂O + 4NO If 2.5 moles of NH₃ is reacted with 3.0 moles of O₂, what is the limiting reagent?

How many moles of nitrogen atoms are in 12 moles of NH₄NO₃?

How many moles of oxygen atoms are in a 0.6163 grams of niacin, C₆H₅NO₂?

What is the coefficient in front of HF when the equation is balanced? B₂O₃ + HF → BF₃ + H₂O

Which of these will not form a positive ion in an ionic compound?

Which of these is the correct name for NaHCO₃?

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

Metals tend to electrons and form ions with a charge.

Which of these is the correct SUM of the coefficients when the equation is balanced? CaCl₂(aq)+ K₂CO₃(aq)→ KCl(aq)+ CaCO₃(s)

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

How many moles of hydrogen atoms are in 3 moles of codeine, C₁₈H₂₁NO₃?

Determine the number of moles in a 1.95 × 10^{− 2} gram sample of the amino acid glycine, CH₂(NH₂)CO₂H.

Which of these is not a covalent compound?

What is the coefficient in front of oxygen (O₂)when the equation is balanced? C₃H₈ + O₂ → CO₂ + H₂O

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Organic Chemistry

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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

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The Chemistry of Food

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Filters

Exam 4: Molecules, Compounds, and Chemical Reactions

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P4 react with oxygen gas? P4 + 5O2 → P4O10

When properly balanced, what will the coefficients be in the equation, respectively? ​ __Mg + __N2 → __Mg3N2

Barium fluoride is often used in glass manufacturing. Which of these is the correct formula and bonding type for barium fluoride?

Which of these is an ionic compound?

Which of these is the correct name for MgCl2?

Nonmetals tend to ____ electrons and form ions with a ____ charge.

For the reaction: 4NH3 + 5O2 ® 6H2O + 4NO If 2.5 moles of NH3 is reacted with 3.0 moles of O2, what is the limiting reagent?

How many moles of nitrogen atoms are in 12 moles of NH4NO3?

How many moles of oxygen atoms are in a 0.6163 grams of niacin, C6H5NO2?

What is the coefficient in front of HF when the equation is balanced? __ B2O3 + __ HF → __ BF3 + __ H2O

Which of these will not form a positive ion in an ionic compound?

Which of these is the correct name for NaHCO3?

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

Metals tend to ____ electrons and form ions with a ____ charge.

Which of these is the correct SUM of the coefficients when the equation is balanced? __ CaCl2(aq)+ __ K2CO3(aq)→ __ KCl(aq)+ __ CaCO3(s)

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

How many moles of hydrogen atoms are in 3 moles of codeine, C18H21NO3?

Determine the number of moles in a 1.95 × 10 − 2 gram sample of the amino acid glycine, CH2(NH2)CO2H.

Which of these is not a covalent compound?

What is the coefficient in front of oxygen (O2)when the equation is balanced? __ C3H8 + __ O2 → __ CO2 + __ H2O

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

Filters

How many moles of tetraphosphorous decaoxide will form when 3.30 moles of P₄ react with oxygen gas? P₄ + 5O₂ → P₄O₁₀

When properly balanced, what will the coefficients be in the equation, respectively? Mg + N₂ → __Mg₃N₂

Which of these is the correct name for MgCl₂?

Nonmetals tend to electrons and form ions with a charge.

For the reaction: 4NH₃ + 5O₂ ® 6H₂O + 4NO If 2.5 moles of NH₃ is reacted with 3.0 moles of O₂, what is the limiting reagent?

How many moles of nitrogen atoms are in 12 moles of NH₄NO₃?

How many moles of oxygen atoms are in a 0.6163 grams of niacin, C₆H₅NO₂?

What is the coefficient in front of HF when the equation is balanced? B₂O₃ + HF → BF₃ + H₂O

Which of these is the correct name for NaHCO₃?

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

Metals tend to electrons and form ions with a charge.

Which of these is the correct SUM of the coefficients when the equation is balanced? CaCl₂(aq)+ K₂CO₃(aq)→ KCl(aq)+ CaCO₃(s)

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

How many moles of hydrogen atoms are in 3 moles of codeine, C₁₈H₂₁NO₃?

Determine the number of moles in a 1.95 × 10^{− 2} gram sample of the amino acid glycine, CH₂(NH₂)CO₂H.

What is the coefficient in front of oxygen (O₂)when the equation is balanced? C₃H₈ + O₂ → CO₂ + H₂O