Top Posters
Since Sunday
10
4
4
m
4
l
3
M
3
j
3
P
3
t
3
S
3
c
3
r
3
New Topic  
tommynkell tommynkell
wrote...
Posts: 106
Rep: 0 0
9 years ago
what are the differences in physical properties of SiO2 and SiO4?
Read 1388 times
2 Replies
Replies
Answer accepted by topic starter
BuggerFormicBuggerFormic
wrote...
Posts: 82
Rep: 0 0
9 years ago
Sign in or Sign up in seconds to unlock everything for free
SiO2 is a stable compound, known as silica.  It is a high-melting, electrically insulating solid.

SiO4 is not a stable compound.  But there is an ion SiO4(4-) which is important in geochemistry.  Of course the ion is charged and cannot form a compound by itself.  You need a positive ion like Na+, making Na4SiO4, or Ca(2+), making Ca2SiO4.  These are silicates.  They also tend to be high-melting, electrically insulating solids.  Some are soluble in water, others aren't.
1

Related Topics

wrote...
A month ago
Thank you
Post Merge: A month ago

thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  96 People Browsing
 1036 Signed Up Today
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 158

Previous poll results: Do you believe in global warming?
Related Images
 2146
 1007
 150