Which of the following chemical reactions represent single replacement reactions? (SELECT ALL THAT APPLY)ResponsesLi + Br2 --> LiBrLi + Br 2 --> LiBrSiI4 + Mg --> Si + MgI2SiI 4 + Mg --> Si + MgI 2CuCl2 + K(OH) --> Cu(OH)2 + KClCuCl 2 + K(OH) --> Cu(OH) 2 + KClNH3 --> N2 + H2NH 3 --> N 2 + H 2Sn(NO3)2 + K(OH) --> Sn(OH)2 + K(NO3)Sn(NO 3 ) 2 + K(OH) --> Sn(OH) 2 + K(NO 3 )Fe + Cu(SO4) --> Fe(SO4) + Cu
Question
Which of the following chemical reactions represent single replacement reactions? (SELECT ALL THAT APPLY)ResponsesLi + Br2 --> LiBrLi + Br 2 --> LiBrSiI4 + Mg --> Si + MgI2SiI 4 + Mg --> Si + MgI 2CuCl2 + K(OH) --> Cu(OH)2 + KClCuCl 2 + K(OH) --> Cu(OH) 2 + KClNH3 --> N2 + H2NH 3 --> N 2 + H 2Sn(NO3)2 + K(OH) --> Sn(OH)2 + K(NO3)Sn(NO 3 ) 2 + K(OH) --> Sn(OH) 2 + K(NO 3 )Fe + Cu(SO4) --> Fe(SO4) + Cu
Solution
The single replacement reactions from the list provided are:
- Li + Br2 --> LiBr
- SiI4 + Mg --> Si + MgI2
- Fe + Cu(SO4) --> Fe(SO4) + Cu
In a single replacement reaction, one element replaces another element in a compound. For example, in the reaction Li + Br2 --> LiBr, lithium (Li) replaces bromine (Br2) to form lithium bromide (LiBr). Similarly, in SiI4 + Mg --> Si + MgI2, magnesium (Mg) replaces silicon (Si) in silicon tetraiodide (SiI4) to form magnesium iodide (MgI2). Lastly, in Fe + Cu(SO4) --> Fe(SO4) + Cu, iron (Fe) replaces copper (Cu) in copper sulfate (CuSO4) to form iron sulfate (FeSO4).
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