Science, asked by sandhi5shika, 1 year ago

Define double and single displacement reactions

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Answered by vishwa12sharma
5

A single-replacement reaction is a chemical reaction in which one element is substituted for another element in a compound, generating a new element and a new compound as products. For example,

2HCl(aq) + Zn(s) → ZnCl2(aq) + H2(g)

A double-replacement reaction occurs when parts of two ionic compounds are exchanged, making two new compounds.  An example is

CuCl2(aq) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2AgCl(s)
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