Top Posters
Since Sunday
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
OldSpice OldSpice
wrote...
Go to Answer
Posts: 6432
Rep: 33 0
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 1240 times
6 Replies
Replies
Answer accepted by topic starter
ElectricElectric
wrote...
#1
Top Poster
Posts: 6431
Rep: 694 0
9 years ago
Sign in or Sign up in seconds to unlock everything for free
1
.silent.boss

Related Topics

OldSpice Author
wrote...
#2
9 years ago
Perfect!

..Thank you so much for your support
wrote...
#3
9 years ago
My pleasure
.silent.boss
wrote...
#4
3 years ago
Gracias senior!
wrote...
#5
3 years ago
Thank you
wrote...
#6
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      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1296 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4430
  
 333
  
 2833
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 741
Previous poll results: Who's your favorite biologist?