This topic contains a solution. Click here to go to the answer

Author Question: Which elements all belong in the same group? A) C, N, O B) Fe, Cu, Ni C) B, Si, As D) F, Cl, ... (Read 31 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
Which elements all belong in the same group?
 
  A) C, N, O
  B) Fe, Cu, Ni
  C) B, Si, As
  D) F, Cl, Br
  E) Al, Ge, Sb

Question 2

What is the concentration of FeCl3 in a solution prepared by dissolving 20.0 g of FeCl3 in enough water to make 275 mL of solution?
 
  A) 4.48  10-4 M
  B) 0.448 M
  C) 2.23 M
  D) 2.23  103 M



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

D

Answer to Question 2

B




melina_rosy

  • Member
  • Posts: 531
Reply 2 on: Aug 27, 2018
Gracias!


steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

 

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?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

For a complete list of videos, visit our video library