Problem: Which of the following reactions are redox reactions?Check all that apply. a) Al(s)+3Ag+(aq) = Al3+(aq)+3Ag(s)b) SO3(g)+H2O(l) = H2SO4(aq)c) Ba(s)+Cl2(g) = BaCl2(s)d) Mg(s)+Br2(l) = MgBr2(s)

FREE Expert Solution

a) Al(s)+3Ag+(aq) = Al3+(aq)+ 3Ag(s)

Al (s): O.S. = 0

Al3+ (aq): O.S. = +3

Al  change in O.S. : 0 to +3  reduction


Ag+ (aq): O.S. = +1

Ag (s): O.S. = 0

Ag  change in O.S. : +1 to 0 oxidation 

redox reaction


b) SO3(g)+H2O(l) = H2SO4(aq)


O.S. S + 3(O.S. O) = 0

O.S. S + 3(-2) = 0

O.S. S + (-6) = 0

O.S. S = +6


View Complete Written Solution
Problem Details

Which of the following reactions are redox reactions?

Check all that apply. 

a) Al(s)+3Ag+(aq) = Al3+(aq)+3Ag(s)

b) SO3(g)+H2O(l) = H2SO4(aq)

c) Ba(s)+Cl2(g) = BaCl2(s)

d) Mg(s)+Br2(l) = MgBr2(s)

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Redox Reactions concept. If you need more Redox Reactions practice, you can also practice Redox Reactions practice problems.