The formula of a compound is [tex]Ni(NO_3)_2[/tex]
Given:
The ions [tex]Ni^{2+}[/tex] and [tex]NO_3^-[/tex]
To find:
The formula for ions [tex]Ni^{2+}[/tex] and [tex]NO_3^-[/tex]
Solution:
The ion with a positive charge (cation) = nickel ion = [tex]Ni^{2+}[/tex]
The ion with a negative charge (anion) = nitrate ion = [tex]NO_3^-[/tex]
Valency on nickel ion = 2
Valency on nitrate ion = 1
Using the criss-cross method as shown in image
The formula of a compound : [tex]Ni(NO_3)_2[/tex]
The name of a compound is nickel(II) nitrate
[tex]Ni^{2+}+2NO_3^-\rightarrow Ni(NO_3)_2[/tex]
The formula of a compound is [tex]Ni(NO_3)_2[/tex]
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