Answer:
13. COâ‚‚ - Ionic
14. Hâ‚‚O - Covalent
15. NaF - Ionic
16. CH - Covalent
17. SOₓ (let me guess if the given is either SO₃ or SO₄) - Ionic
18. Kâ‚‚O - Ionic
19. LiBr - Ionic
20. CaClâ‚‚ - Ionic
21. Naâ‚‚O - Ionic
22. ? - what is the compound here?