« previous next »

Author Question: If a cold front moves into a moist region, A) humidity will likely decrease. B) the chances of ... (Read 61 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?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

A Mediterranean woodland in California shown during the cool moist season, when the herbaceous veget A Mediterranean woodland in California shown during the cool moist season, when the herbaceous veget
Shifts between Warm and Cold Periods during the Last 3 Million Years Shifts between Warm and Cold Periods during the Last 3 Million Years
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
Medical assistant working in a front office area of a medical office. Medical assistant working in a front office area of a medical office.
Tai chi stance with front foot pointing straight ahead and back foot at 45° angle, heels in line, ... Tai chi stance with front foot pointing straight ahead and back foot at 45° angle, heels in line, ...
A gradient of bicoid mRNA (blue stain) as concentrated in anterior region A gradient of bicoid mRNA (blue stain) as concentrated in anterior region
Video: Generalized life cycles for plants and animals Animation

For a complete list of videos, visit our video library