Respuesta :
Answer:
Cobalt
[tex]Co+Ni(NO_3)_2 \rightarrow Co(NO_3)_2+Ni[/tex]
Explanation:
More reactive metal displaces less reactive metal from its salt.
Reactivity of a metal is determined by its position in activity series. A metal can displace only those metals from their salts which are below than it in the activity series.
Among given, only cobalt is above than nickel in reactive series, so only cobalt will react with nickel nitrate and displaces it.
The reaction between cobalt and nickel nitrate is as follows:
[tex]Co+Ni(NO_3)_2 \rightarrow Co(NO_3)_2+Ni[/tex]
The metal that has been able to react is Cobalt (Co). The chemical equation has been, [tex]\rm Co\;+\;Ni(NO_3)_2\;\rightarrow\;Co(NO_3)_2\;+\;Ni[/tex].
The given mixture has been constituted of metals. The addition of nickel nitrate a metallic compound has been performed.
The reactivity series of the metals has been describing the element that is more reactive and less reactive compared to another.
The more reactive element has been capable of replacing the less reactive element and results in the chemical reaction.
In the following elements in the mixture, Co has been more reactive than Ni, and thus the chemical reaction takes place between cobalt and nickel nitrate forming cobalt nitrate. The chemical equation for the reaction has been:
[tex]\rm Co\;+\;Ni(NO_3)_2\;\rightarrow\;Co(NO_3)_2\;+\;Ni[/tex]
For more information about the chemical equation, refer to the link:
https://brainly.com/question/20492533
