Author Question: Which one of the following is an exothermic process? A) ice melting B) water evaporating C) ... (Read 198 times)

tsand2

  • Hero Member
  • *****
  • Posts: 520
Which one of the following is an exothermic process?
 
  A) ice melting
  B) water evaporating
  C) boiling soup
  D) condensation of water vapor
  E) Ammonium thiocyanate and barium hydroxide are mixed at 25 C: the temperature drops.

Question 2

Osmium has a density of 22.6 g/cm3. What volume (in cm3 ) would be occupied by a 21.8 g sample of osmium?
 
  A) 0.965
  B) 1.04
  C) 493
  D) 2.03  10-3
  E) 2.03  103


tsternbergh47

  • Sr. Member
  • ****
  • Posts: 311
Answer to Question 1

Posted another one can you check that one too? Thanks.

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

tsternbergh47

  • Sr. Member
  • ****
  • Posts: 311

 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

For a complete list of videos, visit our video library