× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
michdo michdo
wrote...
Posts: 42
Rep: 0 0
11 years ago
my textbook says that a polyatomic ion are charged groups consisting of two or more atoms joined ogether by a covalent bond.... isn't that the same definition of a molecular compound?
Read 280 times
1 Reply

Related Topics

Replies
wrote...
#1
11 years ago
Big difference, molecular compounds do not have a charge.  Charged species are much more reactive than uncharged species.  Consider SO3^2- is an ion that will precipitate in the presence of Ba^2+ ion while SO3 is a gas that is a major cause of air pollution and acid rain.  One little charge makes a great difference.  That is why you have to memorize the polyatomics including charges.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1211 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 1586
  
 72
  
 773
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Do you believe in global warming?