Author Question: What is happening at the cathodic region? Rust has a tendency to form when iron in contact with ... (Read 42 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?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

For a complete list of videos, visit our video library