NaCN - DEDUCE TYPE OF BONDING THAT HOLDS THIS COMPOUND TOGETHER, EXPLAIN IN 1 OR 2 SENTENCES.

There is a covalent bond between the C and N atoms in the CN- ion, and an electrostatic bond between the Na+ and CN-

thank you very much

You're welcome! It seems like you already have a good understanding of the bonding in NaCN. Just to reiterate, NaCN has both covalent bonding between the carbon (C) and nitrogen (N) atoms within the CN- ion, and ionic bonding between the sodium (Na+) cation and the CN- anion.