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

Author Question: A metal complex absorbs light mainly at 420 nm. What is the color of the complex? A) green B) ... (Read 58 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Aug 27, 2018
A metal complex absorbs light mainly at 420 nm. What is the color of the complex?
 
  A) green
  B) yellow
  C) red
  D) orange
  E) purple

Question 2

210Pb has a half-life of 22.3 years and decays to produce 206Hg. If you start with 7.50 g of 210Pb, how many grams of 206Hg will you have after 17.5 years?
 
  A) 4.35
  B) 3.15
  C) 3.09
  D) 0.0600
  E) 1.71


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joewallace

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Arii_bell

  • Member
  • Posts: 596
Reply 2 on: Aug 27, 2018
Wow, this really help

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m. Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m.
Peptide Arrays - light-directed, spatially patterned oligopeptide synthesis Peptide Arrays - light-directed, spatially patterned oligopeptide synthesis
A Radio Telescope in Green Bank, West Virginia A Radio Telescope in Green Bank, West Virginia
Complex carbohydrates Complex carbohydrates
Color-enhanced electron micrograph of E. coli undergoing cell division Color-enhanced electron micrograph of E. coli undergoing cell division
Dark Green Eye Color Dark Green Eye Color
Video: Neurotransmission at chemical synapses & Excitory and inhibitory potentials

For a complete list of videos, visit our video library