HelpisNeededinChem HelpisNeededinChem
  • 20-05-2020
  • Chemistry
contestada

Which half-reaction correctly represents reduction? *


a. S²⁻+2e⁻ ⇒ S⁰

b. S²⁻⇒S⁰ + 2e⁻

c.Mn⁷⁺+3e⁻⇒Mn⁴⁺

d.Mn⁷⁺⇒Mn⁴⁺₊3e⁻

Respuesta :

lcloudrunners lcloudrunners
  • 20-05-2020

Answer:

C

Explanation:

Reduction can be seen through addition (gaining) of electrons, addition of Hydrogen or removal of Oxygen

Mn7+ is reduced to Mn4+ by the addition of 3 electrons.

Answer Link

Otras preguntas

Why was General Lee's loss at Antietam important to the Union?
Complete the sentence with the correct form of the verb gustar and the indirect object pronoun (me, te, le, etc). ¿Qué __________ __________ hacer a Juan en v
Devon’s mother borrowed $4,000 to have some repairs done on the house. The bank is charging 9% simple annual interest on the loan. How much interest will Devon’
A retirement community has a sign at its main entrance that says "Residents over the age of 55 welcome." Which of the following inequalities best represents the
To what percent should you limit saturated fats in an ideal diet?
1. If you had been a pioneer living in Illinois, Kentucky, or Tennessee in the late 1840s, would you have gone west to settle there? 2. Why or why not? 3. Bri
you roll a 6 sided die what is p (even)
Why does net productivity diminish with increasing trophic levels??
I am having trouble with number 4 I have no idea how to solve
can somebody help me with this problem