Top Posters
Since Sunday
p
6
I
6
h
5
k
5
a
5
J
5
k
5
r
5
O
5
x
5
d
4
s
4
New Topic  
OldSpice OldSpice
wrote...
Posts: 6432
9 years ago
An emerald gemstone is an impure form of the mineral beryl, Be3Al2Si16O18 (818.43 g/mol). What is the percentage of aluminum in the mineral?
A) 3.30%
B) 3.37%
C) 6.59%
D) 35.2%
E) 54.9%
Read 1226 times
6 Replies
Replies
Answer accepted by topic starter
ElectricElectric
wrote...
Top Poster
Posts: 6431
9 years ago
Sign in or Sign up in seconds to unlock everything for free
1
.silent.boss

Related Topics

OldSpice Author
wrote...
9 years ago
Perfect!

..Thank you so much for your support
wrote...
9 years ago
My pleasure
.silent.boss
wrote...
3 years ago
Gracias senior!
wrote...
3 years ago
Thank you
wrote...
Educator
A year ago
In case you're asking for Silicon, here's how it's done :-)
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  622 People Browsing
 145 Signed Up Today
Related Images
  
 252
  
 924
  
 1441
Your Opinion
Which country would you like to visit for its food?
Votes: 204