« previous next »

Author Question: Identify the number of valence electrons for Mg. A) 8 B) 7 C) 5 D) ... (Read 183 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Aug 27, 2018
Identify the number of valence electrons for Mg.
 
  A) 8
  B) 7
  C) 5
  D) 2

Question 2

What is the difference between a physical property and a chemical property? Give an example of each.
 
  What will be an ideal response?


Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A physical property is one that a substance displays without changing its composition, whereas a chemical property is one that a substance displays only by changing its composition via a chemical change. Physical properties include color, appearance, melting point, boiling point, and density. Chemical properties include corrosiveness, flammability, acidity, and toxicity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

robinn137

  • Hero Member
  • *****
  • Posts: 544
Reply #2 on: Aug 27, 2018
Thanks


Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #3 on: Aug 27, 2018
Welcome :)


« previous next »
 

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Identify the structures shown below by filling in the blanks. Identify the structures shown below by filling in the blanks.
How Much Is Enough? The Explosion In The Number of U.S. Prisoners How Much Is Enough? The Explosion In The Number of U.S. Prisoners
The distribution of the number of hours that a random sample of people spend doing chores per ... The distribution of the number of hours that a random sample of people spend doing chores per ...
DNA Hypermethylation of Number of Known Genes DNA Hypermethylation of Number of Known Genes
Number line for rounding Number line for rounding
How mitosis maintains the chromosome number. How mitosis maintains the chromosome number.
Video: Alternative Energy Sources

For a complete list of videos, visit our video library