Ch. 11, Sec. 2 Types of Chemical Reactions by Hamdy Karim

11.2

Types of Chemical Reactions

The heat and smoke of burning
charcoal are the products of a
combustion reaction.
Combustion is one of the five
general types of chemical
reactions. If you can recognize
a reaction as being a particular
type, you may be able to
predict the products of the
reaction.
© Copyright Pearson Prentice Hall

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11.2


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Classifying Reactions

What are the five general types of
reactions?

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The five general types of reaction are
combination, decomposition, singlereplacement, double-replacement, and
combustion.

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Combination Reactions
A combination reaction is a chemical
change in which two or more substances
react to form a single new substance.

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Practice Problems for Conceptual Problem 11.4

Problem Solving 11.14 Solve Problem
14 with the help of an interactive guided
tutorial.
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11.2


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Decomposition Reactions
A decomposition reaction is a chemical
change in which a single compound breaks
down into two or more simpler products.

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Problem Solving 11.15 Solve Problem
15 with the help of an interactive guided
tutorial.
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11.2


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Single-Replacement Reactions
A single-replacement reaction is a
chemical change in which one element
replaces a second element in a compound.

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The activity series
of metals lists metals
in order of
decreasing reactivity.

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Problem Solving 11.17 Solve
Problem 17 with the help of an
interactive guided tutorial.
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Double-Replacement Reactions
A double-replacement reaction is a
chemical change involving an exchange of
positive ions between two compounds.

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Combustion Reactions
A combustion reaction is a chemical
change in which an element or a compound
reacts with oxygen, often producing energy in
the form of heat and light.

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Predicting the Products of a
Chemical Reaction

Predicting the Products of a Chemical
Reaction
How can you predict the
products of the five general types
of reactions?

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11.2


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Chemical Reaction

The number of elements and/or
compounds reacting is a good indicator
of possible reaction type and thus
possible products.

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Chemical Reaction

Simulation 12
Practice classifying reactions according to
reaction type.

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Chemical Reaction

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Chemical Reaction

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Chemical Reaction

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Chemical Reaction

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Chemical Reaction

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11.2 Section Quiz.

Assess students’ understanding
of the concepts in Section 11.2.
Continue to:

-or-

Launch:

Section Quiz

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11.2 Section Quiz.
1. What type of reaction is described by the
following equation?
6Li + N2 → 2Li3N
a. combination reaction
b. decomposition reaction
c. single-replacement reaction
d. combustion reaction
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11.2 Section Quiz.
2. Balance the following equation and indicate
whether it represents a combustion,
combination, or decomposition reaction.
H2SO4 → H2O2 + SO2
a. H2SO4 → H2O2 + SO2, combination reaction
b. H2SO4 → H2O2 + SO2, decomposition reaction
c. H2SO4 → 2H2O2 + SO2, combination reaction
d. H2SO4 → 2H2O2 + SO2, decomposition reaction

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11.2 Section Quiz.
3. Predict the missing product in the following
unbalanced equation.
Pb(NO3)2 + KOH → KNO3 + ____________
a. PbOH2
b. Pb(OH)4
c. Pb(OH)2

d. PbOH

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Ch. 11, Sec. 2 Types of Chemical Reactions by Hamdy Karim

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