« previous next »

Author Question: Identify the number of valence electrons for Mg. A) 8 B) 7 C) 5 D) ... (Read 170 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?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Conscientiousness is negatively correlated with a number of health-related behaviors. The higher the ... Conscientiousness is negatively correlated with a number of health-related behaviors. The higher the ...
Testing client’s ability to identify sharp sensations Testing client’s ability to identify sharp sensations
Mayan Number Mayan Number
Doty's data show a very rapid drop in late adulthood in the ability to identify smells Doty's data show a very rapid drop in late adulthood in the ability to identify smells
Can you identify the banding patterns predicted by each model after the first round of ... Can you identify the banding patterns predicted by each model after the first round of ...
A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ... A typical lightning bolt may last for 0.167 s and transfer 1.07 x 10 electrons. Calculate the ...
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library