You have new items in your feed. Click to view.
Question and answer
2. What is the purpose of using the cobalt glass in the identification of sodium and potassium?
An intense yellow flame confirms the presence of sodium ions. [ The presence of potassium ions is indicated by a pale violet flame which appears reddish-violet through cobalt glass. In a mixture that may contain Na and K salts, it could be difficult to see the pale violet flame of potassium through the intense yellow flame of sodium. For identification of potassium, it is necessary to view the
flame through an optical filter to eliminate as far as possible the colors due to sodium, calcium, and other interfering ions. ]
Expert answered|Tachek|Points 50|
Question
Asked 1/14/2013 6:29:49 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
The capital of New Sweden was called New Amsterdam. A. True B. False
Question
Updated 10/25/2015 6:11:37 AM
1 Answer/Comment
The capital of New Sweden was called New Amsterdam. FALSE.
Added 10/24/2015 9:24:53 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [10/25/2015 6:11:20 AM]
Who was Genghis Khan’s grandson who captured Baghdad in 1258? A. Barbarossa B. Isfahan C. Saladin D. Hulagu
Question
Not Answered
Updated 5/28/2014 8:54:26 AM
1 Answer/Comment
Hulagu was Genghis Khan’s grandson who captured Baghdad in 1258.
Added 5/28/2014 8:54:26 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [5/28/2014 8:59:53 AM]
The Justinian Code was A. a code of honor governing the Byzantine Empire. B. a collection of religious laws. C. a body of civil law that controlled Byzantine life. D. a code for entering Constantinople.
Question
Not Answered
Updated 10 days ago|3/18/2017 8:51:15 AM
1 Answer/Comment
The Justinian Code was a body of civil law that controlled Byzantine life.
Added 10 days ago|3/18/2017 8:51:15 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [3/18/2017 9:14:06 AM]
Write an equation of a line with the given slope and y-intercept. m = –1, b = –7
Weegy: The equation of the line, in general form, that passes through the point (1, 1) and has a y-intercept of 2 is y=-x+2, or y=2-x (More)
Question
Not Answered
Updated 1/15/2013 5:41:13 AM
1 Answer/Comment
The equation of the line with slope m = –1 and y-intercept b = –7 is:
y = - x - 7

Added 1/15/2013 5:41:13 AM
27,234,985 questions answered
Popular Conversations
Simplify the expression (x 6)^3 ?
Weegy: that's not possible! what do you need to know. [s]
3/27/2017 7:09:55 PM| 3 Answers
3 = b + 3
Weegy: (b3)2 is equal to b6. Solution: =(b3)2. =(b3)*(b3). =(b*b*b)*(b*b*b). =b*b*b*b*b*b. =b6. User: x/5 + 9 = ...
3/27/2017 7:19:00 AM| 2 Answers
The right to vote and participate in one's government is a _____ ...
Weegy: The right to vote and participate in one's government is a HUMAN right. User: Atmosphere-ocean ...
3/27/2017 11:42:28 AM| 2 Answers
Which of the following best describes the small problems of daily ...
Weegy: A living will is a legal document that a person uses to make known his or her wishes regarding life prolonging ...
3/27/2017 10:05:20 PM| 2 Answers
Regarding use of the media, spin can best be defined as A. ...
Weegy: Regarding use of the media, spin can best be defined as casting a positive light on negative facts. User: Who ...
3/28/2017 8:09:07 AM| 2 Answers
Decisions should be made with little to no thought. True False
Weegy: False is a statement to a person or group made by another person or group who knows it is not the whole truth, ...
3/28/2017 11:04:20 AM| 2 Answers
With the exception of Nebraska, all states have what type of ...
Weegy: With the exception of Nevada, all states have Bicameral system. User: State governors have all of the ...
3/27/2017 12:29:46 AM| 1 Answers
Weegy Stuff
S
Points 604 [Total 705] Ratings 0 Comments 604 Invitations 0 Offline
S
Points 544 [Total 544] Ratings 0 Comments 544 Invitations 0 Offline
S
P
P
L
P
Points 273 [Total 1591] Ratings 1 Comments 263 Invitations 0 Offline
S
R
Points 205 [Total 305] Ratings 1 Comments 145 Invitations 5 Offline
S
P
P
L
P
P
Points 184 [Total 1636] Ratings 1 Comments 174 Invitations 0 Offline
S
Points 30 [Total 40] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 14 [Total 14] Ratings 1 Comments 4 Invitations 0 Offline
S
P
P
Points 14 [Total 744] Ratings 0 Comments 14 Invitations 0 Offline
S
Points 13 [Total 13] Ratings 1 Comments 3 Invitations 0 Offline
S
Points 12 [Total 12] Ratings 0 Comments 12 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.