Respuesta :
Only 2nd reaction is a single replacement reaction
What is a single replacement reaction?
A single replacement reaction is a reaction in which an element is replaced by another element in a compound.
It is often called a single displacement reaction
The reactants in this reaction are always pure elements and an aqueous compound.
When this reaction occurs, a new aqueous compound and other pure elements are formed as products.
We can write a general single replacement reaction as:
[tex]AB (aq) + C \rightarrow A + CB(aq)[/tex]
Hence, only 2nd reaction is a single replacement reaction that is
[tex]Cl_2(g) + 2NaBr(aq) \rightarrow Br_2(l) + 2NaCl (aq)[/tex]
Disclaimer: The question was given incomplete on the portal. Here is the complete question
Question: Which response includes all of the following that is single replacement reactions and no other reactions?
- [tex]Li_2O(s) + CO_2(g) \rightarrow Li_2CO_3(s)[/tex]
- [tex]Cl_2(g) + 2NaBr(aq) \rightarrow Br_2(l) + 2NaCl (aq)[/tex]
- [tex]HNO_3(aq) + KOH (aq) \rightarrow KNO_3(aq) + H_2O (l)[/tex]
- [tex]SO_3(l) + H_2O \rightarrow H_2SO_4[/tex]
Learn more about single replacement reaction:
https://brainly.com/question/1596829
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