« previous next »

Author Question: What is the valence shell electron configuration of the ion formed from an atom of the halogen ... (Read 47 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?

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?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Diagrams showing the multiple energy shells and orbitals of a nitrogen atom Diagrams showing the multiple energy shells and orbitals of a nitrogen atom
Homologous proteins in the electron transport chains of mitochondria and chloroplasts Homologous proteins in the electron transport chains of mitochondria and chloroplasts
Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Scorpions, Spiders and Sharks: Electron-Microscope Images Scorpions, Spiders and Sharks: Electron-Microscope Images
A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street
Light micrograph of a live diatom, with chloroplasts visible through the shell Light micrograph of a live diatom, with chloroplasts visible through the shell
Video: Introduction to Breast Cancer

For a complete list of videos, visit our video library