write two differences between displacement and double displacement reaction. Write one equation of each of these two types of reaction
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Answer:
ANSWER
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)→ZnCl
2
(aq)+H
2
(g) is an example of a single-replacement reaction. The hydrogen atoms in HCl are replaced by Zn atoms, and in the process a new element hydrogen is formed.
A double-displacement reaction occurs when parts of two ionic compounds are exchanged, making two new compounds. A characteristic of a double-replacement equation is that there are two compounds as reactants and two different compounds as products.
An example is CuCl
2
(aq)+2AgNO
3
(aq)→Cu(NO
3
)
2
(aq)+2AgCl(s)
There are two equivalent ways of considering a double-replacement equation,either the cations are swapped, or the anions are swapped.