This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In a battery, the following oxidation-reduction reaction is taking place: Mn2O3 + ZnO 2 MnO2 + ... (Read 84 times)

Zoey63294

  • Hero Member
  • *****
  • Posts: 539
on: Aug 27, 2018
In a battery, the following oxidation-reduction reaction is taking place:
 
  Mn2O3 + ZnO  2 MnO2 + Zn
 
  What is undergoing reduction as written?
  A) Zn
  B) ZnO
  C) MnO2
  D) Mn2O3
  E) none of the above

Question 2

Why doesn't uranium ore spontaneously undergo a chain reaction?
 
  A) Uranium ore must be weapons' grade in order for it to undergo chain reaction.
  B) Uranium ore is mostly non-fissionable isotope U-238.
  C) Uranium ore does spontaneously undergo slow chain reaction over time finally resulting in it becoming lead.
  D) Uranium ore, mostly U-235, must be enriched with U-238 in order for it to undergo a chain reaction.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jane

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B


Zoey63294

  • Member
  • Posts: 539
Reply 2 on: Aug 27, 2018
Gracias!

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

These examples of stimuli were used in the experiment by Vinckier et al. (2007). Mouton is the Frenc These examples of stimuli were used in the experiment by Vinckier et al. (2007). Mouton is the Frenc
Place your hands on both sides of the upper arm, and squeeze along the anterior and posterior ... Place your hands on both sides of the upper arm, and squeeze along the anterior and posterior ...
Effleurage to buttocks muscles using reinforced palm. Place one hand over the other to apply ... Effleurage to buttocks muscles using reinforced palm. Place one hand over the other to apply ...
Reaction 4: Cleavage to Two Triose Phosphates Reaction 4: Cleavage to Two Triose Phosphates
What is the value of the equilibrium constant, K, at 25°C for the reaction? What is the value of the equilibrium constant, K, at 25°C for the reaction?
What is the value for Kc for this reaction at 25°C? What is the value for Kc for this reaction at 25°C?
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

For a complete list of videos, visit our video library