Answer
a) ionic
b) covalent
c) ionic
d) ionic
e) covalent
f) covalent
g) ionic
h) covalent
i) covalent
Work Step by Step
a) ionic - consists of $Ca^{2+}$ cation and ${NO_{3}}^{-}$ anions
b) covalent - $H$ and $Se$ are nonmetals
c) ionic - consists of $K^{+}$ cation and ${NO_{3}}^{-}$ anion
d) ionic - consists of $Ca^{2+}$ cation and ${Cl}^{-}$ anions
e) covalent - $H$, $C$ and $O$ are nonmetals
f) covalent - $N$ and $Cl$ are nonmetals
g) ionic - consists of $Li^{+}$ cations and ${O}^{2-}$ anion
h) covalent - $N$ and $H$ are nonmetals
i) covalent - $S$, $O$ and $Cl$ are nonmetals