Answer
LiCl will dissolve in water. CO$_2$ will remain a gas. In water, an ionic compound like LiCl will dissociate to for Li$^+$ and Cl$^-$ ions. Molecular compounds like CO$_2$ will not dissociate and will remain as a gas in solution.
Work Step by Step
LiCl will dissolve in water. CO$_2$ will remain a gas. In water, an ionic compound like LiCl will dissociate to for Li$^+$ and Cl$^-$ ions. Molecular compounds like CO$_2$ will not dissociate and will remain as a gas in solution.