Author Question: Which one of the following is an exothermic process? A) ice melting B) water evaporating C) ... (Read 188 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?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

For a complete list of videos, visit our video library