types of reactions and predicting products snc2d
TRANSCRIPT
Types of Types of Reactions and Reactions and
Predicting Predicting ProductsProductsSNC2DSNC2D
Types of ReactionsTypes of Reactions
Reactions can be divided into 4 main Reactions can be divided into 4 main types:types:
SynthesisSynthesis DecompositionDecomposition Single Displacement/ReplacementSingle Displacement/Replacement Double Displacement/ReplacementDouble Displacement/Replacement
SynthesisSynthesis
Synthesis: 2 or more reactants Synthesis: 2 or more reactants combine to form 1 productcombine to form 1 product
SynthesisSynthesis
Synthesis: 2 or more reactants Synthesis: 2 or more reactants combine to form 1 productcombine to form 1 product
SynthesisSynthesis
Synthesis: 2 or more reactants Synthesis: 2 or more reactants combine to form 1 productcombine to form 1 product
e.g.e.g. Mg + OMg + O22 -> MgO -> MgO
SynthesisSynthesis
Synthesis: 2 or more reactants Synthesis: 2 or more reactants combine to form 1 productcombine to form 1 product
e.g. 2e.g. 2 Mg + OMg + O22 -> 2 MgO -> 2 MgO
SynthesisSynthesis
Synthesis: 2 or more reactants Synthesis: 2 or more reactants combine to form 1 productcombine to form 1 product
e.g. 2e.g. 2 Mg + OMg + O22 2 MgO 2 MgO
S + Zn S + Zn ZnS ZnS
DecompositionDecomposition
Decomposition: 1 reactant breaks Decomposition: 1 reactant breaks down into 2 or more productsdown into 2 or more products
DecompositionDecomposition
Decomposition: 1 reactant breaks Decomposition: 1 reactant breaks down into 2 or more productsdown into 2 or more products
e.g. e.g. HH22O O H H22 + O + O22
DecompositionDecomposition
Decomposition: 1 reactant breaks Decomposition: 1 reactant breaks down into 2 or more productsdown into 2 or more products
e.g. 2 He.g. 2 H22O O 2 H 2 H22 + O + O22
DecompositionDecomposition
Decomposition: 1 reactant breaks Decomposition: 1 reactant breaks down into 2 or more productsdown into 2 or more products
e.g. 2 He.g. 2 H22O O 2 H 2 H22 + O + O22
KClOKClO33 KCl + O KCl + O22
DecompositionDecomposition
Decomposition: 1 reactant breaks Decomposition: 1 reactant breaks down into 2 or more productsdown into 2 or more products
e.g. 2 He.g. 2 H22O O 2 H 2 H22 + O + O22
2 KClO2 KClO33 2 KCl + 3 O 2 KCl + 3 O22
Single DisplacementSingle Displacement
Single Displacement: a single element Single Displacement: a single element replaces another in a compoundreplaces another in a compound
Single DisplacementSingle Displacement
Single Displacement: a single element Single Displacement: a single element replaces another in a compoundreplaces another in a compound
e.g. MgBre.g. MgBr22 + Cl + Cl22 MgCl MgCl22 + Br + Br22
Negative ions replace negative ions!Negative ions replace negative ions!
Single DisplacementSingle Displacement
Single Displacement: a single element Single Displacement: a single element replaces another in a compoundreplaces another in a compound
e.g. Fe + CuSOe.g. Fe + CuSO44
Single DisplacementSingle Displacement
Single Displacement: a single element Single Displacement: a single element replaces another in a compoundreplaces another in a compound
e.g. Fe + CuSOe.g. Fe + CuSO44 Cu + FeSO Cu + FeSO44
And positive ions replace positive And positive ions replace positive ions!ions!
Double DisplacementDouble Displacement
Double Displacement: parts of two Double Displacement: parts of two compounds switch placescompounds switch places
Double DisplacementDouble Displacement
Double Displacement: parts of two Double Displacement: parts of two compounds switch placescompounds switch places
e.g. NaOH + FeCle.g. NaOH + FeCl33
Double DisplacementDouble Displacement
Double Displacement: parts of two Double Displacement: parts of two compounds switch placescompounds switch places
e.g. NaOH + FeCle.g. NaOH + FeCl33 Fe(OH) Fe(OH)33 + + NaClNaCl
Double DisplacementDouble Displacement
Double Displacement: parts of two Double Displacement: parts of two compounds switch placescompounds switch places
e.g. 3 NaOH + FeCle.g. 3 NaOH + FeCl33 Fe(OH) Fe(OH)33 + 3 + 3 NaClNaCl
Double DisplacementDouble Displacement
Double Displacement: parts of two Double Displacement: parts of two compounds switch placescompounds switch places
e.g. 3 NaOH + FeCle.g. 3 NaOH + FeCl33 Fe(OH) Fe(OH)33 + 3 + 3 NaClNaCl
Remember that positive ions pair with Remember that positive ions pair with negative ions.negative ions.
CombustionCombustion
And remember that there also exist And remember that there also exist combustion reactions:combustion reactions:
e.g. the combustion of hydrocarbons e.g. the combustion of hydrocarbons like methanelike methane
CHCH44 + O + O22 CO CO22 + H + H22OO