I can't answer this question because the problem is incomplete. However. I can only answer the second part of the problem. Molecular compounds are covalent compound that cannot dissociate because it is a non-electrolyte. Ionic compounds are made up of positive and negative ions bonded together. They are electrolytes so they dissociate in water. Lastly, molecular acids are those that donate H⁺ ions. They dissociate in water because they can either be strong or weak electrolytes.
