Author Question: What is the valence shell electron configuration of the ion formed from an atom of the halogen ... (Read 104 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
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
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
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

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 average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

For a complete list of videos, visit our video library