AP chemistry equations and reactions summary

Question

For each of the following ionic solids, write a balanced overall equation to show their formation from their elements. Write two balanced half-reactions showing the oxidation and reduction process of the ions being formed.

a. Magnesium sulfide

i. overall:

ii. oxidation:

iii. reduction:

b. sodium bromide

i. overall:

ii. oxidation:

iii. reduction:

c. Aluminum chloride

i. overall:

ii. oxidation:

iii. reduction:

Answer 1

a. Magnesium sulfide

i. overall:

ii. oxidation:

iii. reduction:

I. Mg + S ==> MgS

ii. Mg ==> Mg2+ + 2e-

iii. S + 2e- ==> S2-

You should be able to do the other two.