Question

give two examples that we can easily understood the differences between displacement and double displacement reaction ​

Answer 1

here is your answer mate.

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for double displacement reaction.

Na2So4 + BaCl2 -----> 2NaCl + BaSo4

for double displacement reaction.

Cu + H2So4 -------> CuSo4 + H2

Answer 2

Displacement Reaction: One element takes the place of another element in a compound.

Fe + CuSO4 → FeSO4 + Cu

Double displacement Reaction: Two compounds react by an exchange of ions to form two new compounds.

AgNO3 + NaCl → AgCl + NaNO3