Unit 09 – Chemical Reactions
Key Learning(s):
Chemical properties describe a substance’s ability to change into a new substance.
Chemical reactions involve the breaking of existing bonds, the rearrangement of atoms, and the formation of new bonds to create one or
more new substances, which have different chemical and physical properties than the original substances.
Atoms and mass (matter) are conserved during chemical reactions.
Energy is transferred to different forms of energy during chemical reactions but total energy is conserved.
Unit EQ:
Why do chemical reactions occur?
Students will know:
 The collision theory.
 The 5 types of chemical reactions.
 The process for writing and balancing chemical equations.
 The variables that affect reaction rates.
 Le Chatelier’s Principle
Lesson:
Rearranging Bonds &
Energy Changes
Students will be able to:
 Develop a model that explains how chemical reactions occur.
 Predict the products of a chemical reaction given the reactants.
 Develop a model that explains chemical equilibrium.
 Develop a model that explains electrochemical reactions.
Types of Chemical
Reactions
Reaction Rates
Chemical Equilibrium
Electrochemical
Reactions
Textbook:
8.1, 8.2, 13.1
8.3
13.1
13.2, 13.5
15.1, 15.5, 15.6
Lesson EQs:
Why do chemical
reactions occur?
How are the various types
of chemical reactions
classified?
How do certain variables
affect how fast a reaction
occurs?
Why is equilibrium a
dynamic condition?
How does a chemical
reaction create an
electrical current?
How do chemical
reactions occur?
How is energy transferred
during chemical
reactions?
How do we document
chemical reactions?
How can we predict the
products of chemical
reactions?
How does equilibrium
adjust when changes are
made to a system?
How can we predict if an
electrochemical reaction
will spontaneously occur?
How can we “force” nonspontaneous
electrochemical reactions
to occur?
Vocabulary:
chemical reaction,
activation energy,
reactants, products, heat
(enthalpy) of reaction,
exothermic reaction,
endothermic reaction,
collision theory, chemical
equation, word equation,
balanced equation,
coefficients, subscripts
synthesis (composition or
combination) reaction,
decomposition reaction,
single replacement
(displacement) reaction,
double replacement
(displacement) reaction,
combustion reaction,
hydrocarbon
catalyst, rate of reaction
Le Chatelier's Principle,
chemical equilibrium,
reversible reaction
activity series, oxidationreduction reaction,
oxidation, reduction,
current, electricity, voltaic
cell, electrochemical cell,
electrolytic cell, anode,
cathode, salt bridge, half
reaction, electrolysis