Question 1

Which type of reaction is AlCl3 + 3KOH $\to$  Al(OH)3 + 3KCl?

Accepted Answer

A)  Single-replacement 
B)  Double-replacement 
C)  Decomposition 
D)  Combination 
A)  Single-replacement 
B)  Double-replacement 
C)  Decomposition 
D)  Combination

Question 2

The number of moles of solute per liter of solution is called the ______________ of the solution.

Accepted Answer

The answer of The number of moles of solute per...

Question 3

State which element is oxidized and which is reduced in the reaction Fe + Cl2$\to$FeCl2.

Accepted Answer

Fe is oxid

Question 4

By definition, the loss of electrons by an atom or ion is called

Accepted Answer

A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement. 
A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement.

Question 5

A reaction in which a substance reacts with oxygen, bursts into flame, and forms an oxide is called a(n) ______________ reaction.

Accepted Answer

The answer of A reaction in which a substance reacts...

Question 6

Which type of reaction is 2Cu(NO3)2 $\to$  2CuO + 4NO2 + O2?

Accepted Answer

A)  Single-replacement 
B)  Double-replacement 
C)  Combination 
D)  Decomposition 
A)  Single-replacement 
B)  Double-replacement 
C)  Combination 
D)  Decomposition

Question 7

When there is a net absorption of energy in a chemical reaction, it is called a(n) ______________ reaction.

Accepted Answer

A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion 
A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion

Question 8

The substances formed in a chemical reaction are called the ______________.

Accepted Answer

The answer of The substances formed in a chemical reaction...

Question 9

In the reaction 2Al + 3F2 $\to$ 2AlF3, the fluorine

Accepted Answer

A)  is reduced. 
B)  loses electrons. 
C)  is oxidized. 
D)  is the catalyst. 
A)  is reduced. 
B)  loses electrons. 
C)  is oxidized. 
D)  is the catalyst.

Question 10

When carbon combines with oxygen, energy is released to the surroundings. Thus this reaction

Accepted Answer

A)  is an acid-base reaction. 
B)  is endothermic. 
C)  never reaches equilibrium. 
D)  is exothermic. 
A)  is an acid-base reaction. 
B)  is endothermic. 
C)  never reaches equilibrium. 
D)  is exothermic.

Question 11

Complete and balance the equation: Al + HCl $\to$_______

Accepted Answer

2Al + 6HCl

Question 12

Balance the chemical equation: PCl5 + H2O $\to$H3PO4 + HCl

Accepted Answer

PCl₅ + 4H

Question 13

By definition, the removal of oxygen from a compound is called

Accepted Answer

A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement. 
A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement.

Question 14

What basic type of reaction is illustrated by the general equation A + B $\to$  AB?

Accepted Answer

A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement 
A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement

Question 15

When the equation Al + O2$\to$ Al2O3 is balanced, the coefficient of O2 is

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 16

Which of the following compounds would not precipitate from an aqueous solution during a double-replacement reaction?

Accepted Answer

A)  Cu(NO3)2 
B)  CuCO3 
C)  AgCl 
D)  AlPO4 
A)  Cu(NO3)2 
B)  CuCO3 
C)  AgCl 
D)  AlPO4

Question 17

In order, from top to bottom, in the activity series come K, Zn, Pb, H, Cu, and Au. Therefore,

Accepted Answer

A)  adding Pb to ZnCl2 will release Zn. 
B)  adding Cu to HCl will release hydrogen. 
C)  adding Au to HCl will release hydrogen. 
D)  adding Cu to AuCl3 will release Au. 
A)  adding Pb to ZnCl2 will release Zn. 
B)  adding Cu to HCl will release hydrogen. 
C)  adding Au to HCl will release hydrogen. 
D)  adding Cu to AuCl3 will release Au.

Question 18

The substances that are formed by a chemical reaction are called the

Accepted Answer

A)  products. 
B)  reactants. 
C)  chemicals. 
D)  precipitates. 
A)  products. 
B)  reactants. 
C)  chemicals. 
D)  precipitates.

Question 19

Increased temperature usually leads to an increase in reaction rate because collisions are

Accepted Answer

A)  more violent only. 
B)  more frequent only. 
C)  both more violent and more frequent. 
D)  none of these 
A)  more violent only. 
B)  more frequent only. 
C)  both more violent and more frequent. 
D)  none of these

Question 20

Which type of reaction is 2Fe2O3+ 3C $\to$  4Fe+ 3CO2?

Accepted Answer

A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement 
A)  Decomposition 
B)  Combination 
C)  Double-replacement 
D)  Single-replacement

Which type of reaction is AlCl₃ + 3KOH $\to$ Al(OH)₃ + 3KCl?

The number of moles of solute per liter of solution is called the ______________ of the solution.

State which element is oxidized and which is reduced in the reaction Fe + Cl₂ $\to$ FeCl_2.

By definition, the loss of electrons by an atom or ion is called

A reaction in which a substance reacts with oxygen, bursts into flame, and forms an oxide is called a(n) ______________ reaction.

Which type of reaction is 2Cu(NO₃)₂ $\to$ 2CuO + 4NO₂ + O₂?

When there is a net absorption of energy in a chemical reaction, it is called a(n) ______________ reaction.

The substances formed in a chemical reaction are called the ______________.

In the reaction 2Al + 3F₂ $\to$ 2AlF₃, the fluorine

When carbon combines with oxygen, energy is released to the surroundings. Thus this reaction

Complete and balance the equation: Al + HCl $\to$ _______

Balance the chemical equation: PCl₅ + H₂O $\to$ H₃PO₄ + HCl

By definition, the removal of oxygen from a compound is called

What basic type of reaction is illustrated by the general equation A + B $\to$ AB?

When the equation Al + O₂ $\to$ Al₂O₃is balanced, the coefficient of O₂is

Which of the following compounds would not precipitate from an aqueous solution during a double-replacement reaction?

In order, from top to bottom, in the activity series come K, Zn, Pb, H, Cu, and Au. Therefore,

The substances that are formed by a chemical reaction are called the

Increased temperature usually leads to an increase in reaction rate because collisions are

Which type of reaction is 2Fe₂O₃+ 3C $\to$ 4Fe+ 3CO₂?

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Exam 13: The Solar System

Which type of reaction is AlCl3 + 3KOH →\to→ Al(OH)3 + 3KCl?

The number of moles of solute per liter of solution is called the ______________ of the solution.

State which element is oxidized and which is reduced in the reaction Fe + Cl2 →\to→ FeCl2.

By definition, the loss of electrons by an atom or ion is called

A reaction in which a substance reacts with oxygen, bursts into flame, and forms an oxide is called a(n) ______________ reaction.

Which type of reaction is 2Cu(NO3)2 →\to→ 2CuO + 4NO2 + O2?

When there is a net absorption of energy in a chemical reaction, it is called a(n) ______________ reaction.

The substances formed in a chemical reaction are called the ______________.

In the reaction 2Al + 3F2 →\to→ 2AlF3, the fluorine

When carbon combines with oxygen, energy is released to the surroundings. Thus this reaction

Complete and balance the equation: Al + HCl →\to→ _______

Balance the chemical equation: PCl5 + H2O →\to→ H3PO4 + HCl

By definition, the removal of oxygen from a compound is called

What basic type of reaction is illustrated by the general equation A + B →\to→ AB?

When the equation Al + O2 →\to→ Al2O3 is balanced, the coefficient of O2 is

Which of the following compounds would not precipitate from an aqueous solution during a double-replacement reaction?

In order, from top to bottom, in the activity series come K, Zn, Pb, H, Cu, and Au. Therefore,

The substances that are formed by a chemical reaction are called the

Increased temperature usually leads to an increase in reaction rate because collisions are

Which type of reaction is 2Fe2O3+ 3C →\to→ 4Fe+ 3CO2?

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

Which type of reaction is AlCl₃ + 3KOH $\to$ Al(OH)₃ + 3KCl?

State which element is oxidized and which is reduced in the reaction Fe + Cl₂ $\to$ FeCl_2.

Which type of reaction is 2Cu(NO₃)₂ $\to$ 2CuO + 4NO₂ + O₂?

In the reaction 2Al + 3F₂ $\to$ 2AlF₃, the fluorine

Complete and balance the equation: Al + HCl $\to$ _______

Balance the chemical equation: PCl₅ + H₂O $\to$ H₃PO₄ + HCl

What basic type of reaction is illustrated by the general equation A + B $\to$ AB?

When the equation Al + O₂ $\to$ Al₂O₃is balanced, the coefficient of O₂is

Which type of reaction is 2Fe₂O₃+ 3C $\to$ 4Fe+ 3CO₂?