Question

G write the symbols for the cation and anion that make up each ionic compound Co(NO3)2

Answer 1

`Co(NO_3)_2` is formed of cation,
`Co^(2+)` and anion,
`NO_3^(-)`

Step-by-step explanation:

Naming of the ionic compounds:-

• The name of the cation is written first and the the name of the anion is written after the name of the cation separated by single space.
• The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.
• In case of transition metals, the oxidation state are written in roman numerals in bracket in front of positive ions.

Hence, given ionic compound:-

`Co(NO_3)_2` is formed of cation,
`Co^(2+)` and anion,
`NO_3^(-)`

Thus, the name must be Cobalt(II) nitrate.