Answer: One substance which is slippery and conducts electricity in water is probably a base. The other substance which continuously made bubbles of hydrogen gas when Jake dropped magnesium into an aqueous solution of the substance is probably a acid.
Explanation: Bases are those substances which donates [tex]OH^{-1}[/tex] ions when dissolved in water. Thus bases produce ions which help in the conduction of electric current.
Bases are slippery in nature and are used in manufacturing of soaps.
[tex]NaOH\rightarrow Na^++OH^-[/tex]
Acids are those substances which donates [tex]H^{+}[/tex] ions when dissolved in water. Thus acids also produce ions which help in the conduction of electric current. Acids are not slippery in nature.
[tex]Mg+2HCl\rightarrow MgCl_2+H_2[/tex]
Thus magnesium when dropped into an aqueous solution of the acid releases hydrogen gas.
