Author Question: What is happening at the cathodic region? Rust has a tendency to form when iron in contact with ... (Read 12 times)

yoooooman

  • Hero Member
  • *****
  • Posts: 557
What is happening at the cathodic region?
 
  Rust has a tendency to form when iron in contact with water reacts according to the following reaction:
 
  4 Fe + 3 O2  2 Fe2O3
 
  A) Iron is being oxidized.
  B) Oxygen is being oxidized.
  C) Oxygen is being reduced.
  D) Iron is being reduced.
  E) none of the above

Question 2

What would happen if the battery connections were suddenly reversed?
 
  Jewelry is often manufactured by electroplating an expensive metal such as gold over a cheaper metal. A setup for this process can be sketched as follows:
  A) The ring would continue to electroplate with gold.
  B) Gold ions in solution would get reduced and settle to the bottom of the container.
  C) Gold ions in solution would begin to electroplate onto the gold electrode.
  D) All electrolysis would stop.



mceravolo

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

For a complete list of videos, visit our video library