« previous next »

Author Question: What is the valence shell electron configuration of the ion formed from an atom of the halogen ... (Read 99 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Aug 27, 2018
What is the valence shell electron configuration of the ion formed from an atom of the halogen family?
 
  A) ns2
  B) ns2 np2
  C) ns2 np4
  D) ns2 np6
  E) ns2 np8

Question 2

What mass of N2 will be produced from the reaction of 50.0 g N2O4 with 45.0 g N2H4? N2O4(l) + 2 N2H4(l)  3 N2(g) + 4 H2O(g)
 
  A) 59.0 g
  B) 118 g
  C) 152 g
  D) 45.7 g

Question 3

What is the concentration of a solution of HCl in which a 10.0 mL sample of acid required 50.0 mL of 0.150 M NaOH for neutralization?
 
  A) 0.0300 M
  B) 0.150 M
  C) 0.600 M
  D) 0.750 M
  E) 7.50 M


kishoreddi

  • Sr. Member
  • ****
  • Posts: 329
    • Your online Help in Biology and chemistry
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D

Answer to Question 3

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Scanning electron micrograph of a macrophage engulfing numerous bacteria. Scanning electron micrograph of a macrophage engulfing numerous bacteria.
the fibrous configuration of a dry macrofoam sponge swab the fibrous configuration of a dry macrofoam sponge swab
Cyclic electron flow Cyclic electron flow
Glacial deposits overlain by marine carbonates formed in very warm water Glacial deposits overlain by marine carbonates formed in very warm water
Replicated human chromosomes as seen by scanning electron microscopy Replicated human chromosomes as seen by scanning electron microscopy
What is the identity of this atom? What is the identity of this atom?
Video: The Nerve Impulse

For a complete list of videos, visit our video library