Types of Chemical Reactions

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Presentation transcript:

Types of Chemical Reactions

5 Types of Chemical Reactions Synthesis Reaction Decomposition Reaction Single Displacement Reaction Double Displacement Reaction Combustion Reaction

Synthesis Reaction Generally: Element + Element/Compound  Compound Example: 4Fe(s) + 3O2(g)  2Fe2O3(s)

Synthesis Reaction (cont.) A synthesis reaction will look like this: The formula that represents a synthesis reactions is: A + B  AB

Synthesis Reaction (cont.) Identify which of the following reactions are synthesis reactions: 2Na + Cl2  2NaCl ☺ HCl + NaOH  NaCl + H2O 2Mg + O2  2MgO ☺ 4Cu + O2  2Cu2O ☺ 6CO2 + 6H2O  C6H12O6 + 6O2

Decomposition Reaction Generally: Compound  less complex compound + compound A decomposition reaction will look like this:

Decomposition Reaction (cont.) The formula that represents a decomposition reaction: AB  A + B Identify which of the following reactions are decomposition reactions: 2Na + Cl2  2NaCl HCl + NaOH  NaCl + H2O 2FeCl3  2Fe + 3Cl2 ☺ 2CuO  Cu + O2 ☺

Single Displacement Reactions Generally: Element + Compound  Compound + Element Single displacement reactions look like this:

Single Displacement Reactions (cont.) The formula for a single displacement reaction looks like this: A + BC  AC + B Identify which of the following reactions are single displacement: 2Na + Cl2  2NaCl AgNO + Cu  CuNO + Ag ☺ 2Mg + O2  2MgO Cu + HNO3  Cu(NO3)2 + H2 ☺ Zn + 2HCl  ZnCl2 + H2 ☺

Double Displacement Reaction Generally: Compound + Compound  Compound + Compound Double displacement reactions look like this:

Double Displacement Reaction (cont.) The formula for a double displacement reaction is: AB + CD  AD + CB Identify which of the following reactions are double displacement reactions: Zn + 2HCl  ZnCl2 + H2 LiNO3 + NaOH  LiOH + NaNO3 ☺ 2KCl + MgO  MgCl2 + K2O ☺ Mg + S  MgS 2H2O2  2H2O + O2

Combustion Reaction A combustion reaction is when a hydrocarbon reacts with oxygen. A hydrocarbon is any compound that is made up of hydrogen and carbon. Some hydrocarbons also have oxygen atoms in them. The products are always carbon dioxide and water vapour

Combustion Reaction (cont.) The formula for a combustion reaction is: Some H, C and/or O compound + O2(g)  H2O(g) + CO2(g)

Combustion Reaction (cont.) Identify which of the following reactions are combustion reactions: CH4 + 2O2  CO2 + 2H2O ☺ HCl + NaOH  NaCl + H2O C2O2H4 + 2O2  2CO2 + 2H2O ☺ 4Cu + O2  2Cu2O CO2 + 6H2O  C6H12O6 + 6O2