Question

what is meant by double displacement reaction and write 5 examples
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Answer 1

double dispalcement is atype of reaction where two compound and the positive ion and the negative ion of the two reactant switch places

Answer 2

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

ex: 2KI + Pb(NO3)2 → PbI2 (s) + 2KNO3

HCl + NaOH → NaCl + H2O

Bacl2 +Na2SO4 = BaSO4 +2NaCl  

PbNO3 + 2KI =2KNO3 + PbI2

NaHCaO3 + Ch3COOH = H2CO3 + NaCH2

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