1. The cation in Co(NO₃)₂ is Co²⁺
2. The anion in Co(NO₃)₂ is NO₃⁻
How to determine cation and anion in Co(NO₃)₂
We'll begin by defining cation and anion. This is given below:
A cation is an atom which possesses a positive charge.
An anion is an atom or group of atoms which possesses a negative charge
To obtain the cation and the anion in Co(NO₃)₂, we shall write the dissociation equation. This is illustrated below:
Co(NO₃)₂(aq) --> Co²⁺(aq) + 2NO₃⁻(aq)
From the above equation, we can conclude that the cation and the anion in Co(NO₃)₂ is:
- The cation is Co²⁺
- The anion is NO₃⁻
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