Chemical Reactions

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Chemical Reactions
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In each of the following slides, a reaction we
have done in class is named. The type of
reaction, the reaction in words, the equation,
and the balanced equation are shown. Try, as you
go along, to predict the next step
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Synthesis
Magnesium and oxygen produce magnesium oxide
Mg
O2
MgO
2MgO
2Mg
O2
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Decomposition

• Hydrogen peroxide breaks down
• into water and oxygen

H2O2

H2O
O2
O2
2H2O2

2H2O2
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Single replacement

• Aluminum and hydrochloric acid
• produce aluminum chloride and
• hydrogen gas

Al
HCl
AlCl3

H2
2Al
6HCl
2AlCl3
3H2
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Double Replacement

• Lead nitrate and sodium iodide produce sodium
  nitrate and lead iodide

NaNO3
PbI2
Pb(NO3)2
NaI
PbI2
Pb(NO3)2
2NaI
2NaNO3
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Synthesis

• Iron(III) and oxygen produce iron oxide (rust)

Fe2O3
Fe(III)
O2
4Fe(III)
3O2
2Fe2O3
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Single replacement
Iron and copper sulfate produce iron sulfate and
copper
FeSO4
Cu
Fe
CuSO4
Balanced!
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Double replacement and decomposition
Sodium bicarbonate and acetic acid produce sodium
acetate, carbon dioxide, and water
NaHCO3
C2H4O2
NaC2H3O2
CO2 H2O
Balanced !
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Now lets try some more. Balance the equation,
and tell what type of reaction is shown.
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H2O
H2 O2
2H2 O2
2H2O
Decomposition
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N2 H2 NH3
N2 3H3
2NH3
Synthesis
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CO2 H2O
C3H8 O2
3CO2 H2O
C3H8 5O2
Single replacement
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H2 KOH
K H2O
2K 2H2O
H2 2KOH
Single replacement
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Li O2
Li2O
2Li2O
4Li O2
Synthesis
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Ag N2
Ag3N
6Ag N2
2Ag3N
Synthesis
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C2H5OH O2
CO2 H2O
C2H5OH 3O2
2CO2 3H2O
Decomposition
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The End !