2. A spill of hydrochloric acid can be “neutralized” by treating the spill with aluminum, sodium hydroxide, or sodium carbonate. List one advantage and one disadvantage of each method of
neutralization.

Your question is not clear but if you can explain yourself i would be glad to .  just trying to : ))

Iam pretty sure that the answer is d

I'm pretty sure the answer is alcohol 

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻