The following equations show the reactions of the the download process to extrac

Question

The following equations show the reactions of the the download process to extract magnesium metal from seawater.

1. Mg2+ (aq) +2OH- (aq) -> Mg (OH)2 (s)
2. Mg (OH)2 (s) + HCl (aq) -> MgCl2 (s) + H2O (l)
3. MgCl2 (l) -> Mg (s) + Cl2 (g)

Which of the following is the correct series of the types of reactions involved in the extraction of magnesium from seawater?

Select one:
a. reduction
oxidation
electrolysis
b. reduction
oxidation
evaporation
c. reaction with base
reaction with acid
electrolysis
d. reaction with base
reaction with acid
condensation
Thanks and reply asap!

Explanation / Answer

Answer is "C"

First magnesium in seawater converted to insoluble salt[Mg(OH)2] by treating with base and it can be filtered out.

Next insoluble salt magnesium hydroxide can be converted to soluble salt(MgCl2) by treating with acid like HCl.

After that electrolysis of MgCl2 produce Mg and Cl2 at their respective electrodes.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.