Is K2C03 molecular or ionic

Answer 1

It is BOTH.

K2CO3 is a molecule in its own right.

Any substance that is a combination of different elements is a MOLECULE.

The question should ask 'Is potassium carbonate ionic or covalent?'.

Again the answer is BOTH.

The potassium cation (K^(+)) binds ionically to the carbonate anion.

However, within the carbonate anion (CO3^(2-)) , the three atoms 'C', & 'O' combine COVALENTLY, leaving two 'spare' electrons to combine ionically with the potassium cation. Hence the charge of '2-' on the carbonate anion.

Answer 2

it is an ionic compound.

(but it has covalent bond between carbon and oxygen in the carbonate anion)