Question
Asked Jun 27, 2019
46 views

Essays are to be around 50 words each. Each essay needs to include a reaction that relates to what you wrote in the essay. For redox processes, half reactions and the full reaction are expected

topics

  1. Corrosion of iron

  2. Electrolysis of Molten Sodium Chloride.
  3. Electrolytic Deposition of Metals (Electroplating).

  4. Sacrificial anodes (Cathodic Protection)

 

check_circle

Expert Answer

Step 1

The metals react with the environment results in the chemical or electrochemical degradation of metal and this process is known as corrosion. The corrosion of iron also known as rusting. It is an oxidation-reduction process. When iron object left out in open, most air than it exposed to oxygen and water and rusting of iron take place. In this process iron is oxidized to iron (II) ion and oxygen is reduced to OH- ion. The half reaction is shown as follows:

help_outline

Image Transcriptionclose

Oxidation half-reaction: Fe (s)- Fe2*+2e Reduction half-reaction: O, (g)+2H,0(1)+4e" -»4OH" (aq)

fullscreen
Step 2

Combining the half –reaction gives the balanced overall reaction in which for every oxygen molecule two iron atoms is oxidized. The reactions  is shown as follows:

help_outline

Image Transcriptionclose

2Fe(s)+O2(g)+2H,0()->2Fe2 (aq)+4OH* (aq)

fullscreen
Step 3

The process of separating a compound by passing an electric current is known as electrolysis. Chemical reaction at the electrode occurs results in the separa...

help_outline

Image Transcriptionclose

Oxidation half-reaction: 2Cl ()->Cl, (g)+2e Reduction half-reaction: 2Na (aq)+2e" -»2N2 (s)

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Physical Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: what is the base sequence of the mRNA transcribed from this strand T-T-C-C-G-A-A-A-G-A-T-C?

A: The bases in DNA and RNA are,DNA - Adenine (A), Thymine (T), Guanine (G) and Cytosine (C).RNA - Aden...

question_answer

Q: For the reaction2NO(g)+ O2(g)2NO2(g)ΔG° = -73.5 kJ and ΔS° = -146.5 J/K at 278 K and 1 atm.The maxim...

A: The temperature for the given reaction is not changing and it required to calculate maximum amount o...

question_answer

Q: what is the correct name of Au3(PO2)2

A: Oxidation number of Au is determined as given below.

question_answer

Q: One of the following questions is true; the rest are false. Please identify the true statement in th...

A: Among the given statements, hybridization of atomic orbitals is required to explain molecular geomet...

question_answer

Q: 32 & 33

A: Among the given compounds, toluene contains activating group which encourages electrophilic aromatic...

question_answer

Q: what would the chemical reaction be for the process of aspirin when combining salicylic acid, phosph...

A: Preparation reaction of aspirin from the combination of salicylic acid, phosphoric acid, and acetic ...

question_answer

Q: Please fill in the missing reagents that will form the products shown below. CN NH2 13. OH 14. 15.

A: In the reaction given below, a nitrile compound is converted into an amine compound. The reaction is...

question_answer

Q: Q#5. (5 points) Write the chemical equation for the Fisher esterification reaction of acetic acid an...

A: Fischer– esterification: it is a type of esterification reaction of acid react with excess of alcoho...

question_answer

Q: How do I work this problem? 100 calories to kilocalories

A: This question can be solved as follows :