Author Question: The value of G at 25 C for the decomposition of calcium chloride into its constituent elements, ... (Read 93 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
The value of G at 25 C for the decomposition of calcium chloride into its constituent elements, CaCl2 (s)  Ca (s) + Cl2 (g) is ________ kJ/mol.
 
  A) -795.8
  B) +795.8
  C) +763.7
  D) +748.1
  E) -748.1

Question 2

Which equation correctly represents the first ionization of phosphorous?
 
  A) P(g)  P+(g) + e-
  B) P+(g)  P2+(g) + e-
  C) P(g)  P-(g) + e-
  D) P+(g) + e-  P(g)
  E) P2+(g)  P3+(g) + e-

Question 3

A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. The H3O+ concentration after the addition of 0.00 mL of KOH is ________ M.
 
  A) 0.0181
  B) 0.430
  C) 0.723
  D) 0.273
  E) none of the above

Question 4

An acquaintance has a few alcoholic drinks after taking some barbiturates that have already made him appear drunk. Your acquaintance will most likely
 
  A) sober up at once.
  B) stay drunk for days.
  C) have a hangover in the morning.
  D) die.



Mollythedog

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

D

Answer to Question 2

A

Answer to Question 3

C

Answer to Question 4

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

For a complete list of videos, visit our video library