brief explanation about types of chemical reactions with examples for each
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brief explanation about types of chemical reactions with examples for each
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The different types of chemical reactions
COMBINATION REACTION
In this type of reaction two pr more reactants combine to form a single product.
Example: 2Na + Cl2 ---------> 2NaCl
DECOMPOSITION REACTION
In this type of reaction a single reactant breaks to form two or more products.
It is further categorized on the basis of energy applied.
Example:
CaCO3 ---Heat------> CaO + CO2 (THERMAL DECOMPOSITION REACTION)
2H2O ----electricity---> 2H2 + O2 (ELECTROCHEMICAL DECOMPOSITION REACTION)
2AgCl ---sunlight------> 2Ag + Cl2 (PHOTOCHEMICAL DECOMPOSITION REACTION)
DISPLACEMENT REACTION
In this reaction , the more reactive element displaces the less reactive element from it's compound.
Example: Fe2O3 + 2Al ------> Al2O3 + 2Fe
DOUBLE DISPLACEMENT REACTION
In this type of reaction , the radicals mutually exchange their positions.
Example: NaBr + AgCl -----> AgBr + NaCl.
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In a double displacement or metathesis reaction two compounds exchange bonds or ions in order to form different compounds.
Double displacement reaction
AB + CD → AD + CB
An example of a double displacement reaction occurs between sodium chloride and silver nitrate to form sodium nitrate and silver chloride.
NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s)
combustion reaction
A combustion reaction is a type of redox reaction in which a combustible material combines with an oxidizer to form oxidized products and generate heat (exothermic reaction). Usually, in a combustion reaction oxygen combines with another compound to form carbon dioxide and water. An example of a combustion reaction is the burning of naphthalene:
C10H8 + 12 O2 → 10 CO2 + 4 H2O
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