TYPES OF CHEMICAL REACTION PRESENTED BY : LEA S. PAMINTUAN
TYPES OF
CHEMICAL REACTION
PRESENTED BY : LEA S. PAMINTUAN
Five Types of Chemical Reactions
Synthesis Decomposition Single Replacement Double Replacement Combustion
SYNTHESIS- The word Synthesis means to
put things together to make a whole.
- In a Synthesis reaction two or more chemicals bond together forming one new substance.
SYNTHESIS
THE GET-TOGETHER REACTANT + REACTANT →
PRODUCT
A + B AB
→
SYNTHESIS
Synthesis reactions are easy to recognize. There will be two or more reactants, but only one product.
Example : 2Na + Cl2 → 2NaCl 2H2 + O2 → 2H2O
DECOMPOSITION
• The word Decomposition means to separate or breakdown into smaller pieces.
• In a Decomposition reaction, one substance breaks down into two or more products.
DECOMPOSITION
THE BREAK-UP REACTANT → PRODUCT +
PRODUCT
AB A + B
→
DECOMPOSITION
Decomposition reactions , look for chemical equations which have only one reactant, but two or more product.
Example :
SINGLE REPLACEMENT
•Single replacement reaction, one element replaces another element in a compound.
SINGLE REPLACEMENTTHE CHEATERREACTANT + REACTANT → PRODUCT
+ PRODUCT
AB + X AX + B
→
SINGLE REPLACEMENT• Single replacement reactions
have an element and a compound on both the reactant and product side of the equation.
Zn+2HCl →ZnCl2+H2
DOUBLE REPLACEMENT
•Double replacement reaction, a compound reacts with another compound to form two new compounds.
DOUBLE REPLACEMENTTHE SWAP REACTANT+REACTANT
→PRODUCT+PRODUCT
AB + XY AX + BY
→
DOUBLE REPLACEMENT
• Double replacement reactions have two compounds on both the reactant and product side of the equation.
AgNO3+NaCl→AgCl+NaNO3
COMBUSTION•Combustion, or burning,
is a chemical reaction between an organic compound ( usually a hydrocarbon) and oxygen gas.
• The products in a combustion reaction are carbon dioxide and water.
.
• Combustion reactions are exothermic, meaning that they produce heat.
• The general formula for a combustion reaction is :
CxHX + O2→CO2+H2O
.
• Combustion reactions always have oxygen gas as a reactant and water and carbon dioxide as product.