Balancing Redox Reaction Video Lessons

Video Thumbnail

Concept

Problem: Balance the following oxidation-reduction reaction:Fe(s) + Na+ (aq) → Fe2+ (aq) + Na(s) Express the coefficients as integers separated by commas (e.g., 4 ,1 ,3 ,2 where 1 indicates the absence of a coefficient).Balance the following oxidation-reduction reaction: K(s) + H2O(l) → KOH(aq) + H2(g) Express the coefficients as integers separated by commas (e.g., 4 ,1 ,3 ,2 where 1 indicates the absence of a coefficient).

FREE Expert Solution

Balance the redox reaction under acidic conditions: Fe(s) + Na+ (aq) → Fe2+(aq) + Na(s) 

*Before balancing the redox reaction:

 ignore H+, OH-, and H2O in the starting reaction


Step 1: Separate the whole reaction into half-reaction


Fe(s) → Fe2+(aq)                                                 Na+ (aq)  → Na(s) 


Step 2: Balance the non-hydrogen and non-oxygen elements first


Fe(s) → Fe2+(aq)                                                 Na+ (aq)  → Na(s) 

(Fe: balanced)                                                (Na: balanced)


Step 3: Balance oxygen by adding H2O(l) to the side that needs oxygen (1 O: 1 H2O)


Fe(s) → Fe2+(aq)                                                 Na+ (aq)  → Na(s) 

(No oxygens)                                                   (No oxygens)


Step 4: Balance hydrogen by adding H+ to the side that needs hydrogen (1 H: 1 H+)


Fe(s) → Fe2+(aq)                                                 Na+ (aq)  → Na(s) 

(No hydrogens)                                              (No hydrogens)


86% (364 ratings)
View Complete Written Solution
Problem Details

Balance the following oxidation-reduction reaction:

Fe(s) + Na+ (aq) → Fe2+ (aq) + Na(s) 

Express the coefficients as integers separated by commas (e.g., 4 ,1 ,3 ,2 where 1 indicates the absence of a coefficient).

Balance the following oxidation-reduction reaction: 

K(s) + H2O(l) → KOH(aq) + H2(g) 

Express the coefficients as integers separated by commas (e.g., 4 ,1 ,3 ,2 where 1 indicates the absence of a coefficient).


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 Balancing Redox Reaction concept. You can view video lessons to learn Balancing Redox Reaction. Or if you need more Balancing Redox Reaction practice, you can also practice Balancing Redox Reaction practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Hosmane's class at NIU.