Question

Write the formula and names of the compounds formed between :
Potassium and carbonate ions

Answer 1

Potassium and Carbonate ions:

1. Potassium ions are cations and are denoted as ${\mathrm{K}}^{+}$.
2. Carbonate ions are anions and are chemically written as ${\mathrm{CO}}_3^{2-}$.

Compound:

1. The valencies of the elements interchange by the criss-cross method which leads to the formation of the molecule.
2. Potassium ions combine with Carbonate ions to form the compound Potassium carbonate (${\mathrm{K}}_2{\mathrm{CO}}_3^{}$).