« previous next »

Author Question: If a cold front moves into a moist region, A) humidity will likely decrease. B) the chances of ... (Read 58 times)

frankwu

  • Hero Member
  • *****
  • Posts: 549
on: Jul 16, 2018
If a cold front moves into a moist region,
 
  A) humidity will likely decrease.
  B) the chances of precipitation will increase.
  C) evaporation will increase.
  D) photosynthesis will increase.

Question 2

Consider how easily halite (NaCl) dissolves in water. Why does quartz not dissolve readily in water?
 
  What will be an ideal response?


kiamars2010

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 16, 2018
Answer to Question 1

B

Answer to Question 2

Halite dissolves relatively easily because it forms from ionic bonds of elements that only have a charge value of one. Weak attraction results from lopsided distribution of electrons; positive ends of the water molecule (H+) are attracted to and dislodge the anions (Cl-) and the negative ends of the water molecule (O-) are attracted to and dislodge the cations (Na+). Water keeps the ions separated. In contrast, bonds in quartz are mostly covalent.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

The Spinal Cord, The Spinal Cord and Spinal Nerves; Close-up of the Caudal Region of the Spinal Nerv The Spinal Cord, The Spinal Cord and Spinal Nerves; Close-up of the Caudal Region of the Spinal Nerv
To make an ice pack, place crushed ice in a plastic bag, bleed the air out of it, and seal it. Wrap To make an ice pack, place crushed ice in a plastic bag, bleed the air out of it, and seal it. Wrap
The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row
The transition between steps usually occurs at a temperature that would not interfere with cold ... The transition between steps usually occurs at a temperature that would not interfere with cold ...
Gluteal muscles of the hip region. Gluteal muscles of the hip region.
Video: Eczema

For a complete list of videos, visit our video library