Author Question: Which of the following is not a stage in water treatment? A) coarse filtration B) aeration C) ... (Read 123 times)

09madisonrousseau09

  • Hero Member
  • *****
  • Posts: 559
Which of the following is not a stage in water treatment?
 
  A) coarse filtration
  B) aeration
  C) chlorination
  D) distillation
  E) settling

Question 2

When the electron in a hydrogen atom moves from n = 6 to n = 1, light with a wavelength of ________ nm is emitted.
 
  A) 487
  B) 411
  C) 434
  D) 93.8
  E) 657



jessicaduplan

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

For a complete list of videos, visit our video library