Q7. Explain all types of chemical
reactions with examples.
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Answer:
there are four types of chemical reactions
1) combination reaction
2) decomposition reaction
3) displacement eaction
4) double displacement reaction
Explanation:
1) combination reaction: when two or more reactants combine together to form one single product.
for example:CH4 + O2 = CO2 + 2H2O
2) decomposition reaction: when one reactant breaks down to form two or more products.
for example CaCO3 = CaO + CO2
3) displacement reaction : when more reactive element displaces less reactive element.
for example Fe + CuSO4 = FeSO4 + Cu
4) double displacement reaction: the reaction in which exchange of ions takes place.
for example NaSO4 + BaCl2 = BaSO4 + 2NaCl
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