You have new items in your feed. Click to view.
Question and answer
How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain? a 70 neutrons, 75 protons, 50 electrons b 120 neutrons, 50 protons, 75 electrons c 50
protons, 50 electrons, 75 neutrons d 75 electrons, 50 protons, 50 neutrons
50 protons, 50 Electrons and 75 Neutrons. The Atomic number is the number of protons in the nucleus of an atom, while the mass number is the sum of the protons plus the neutrons. [ The electrons have near 0 mass so they don't add up to the mass number and unless the atom is an isotope, the number of protons is always equal to those of electrons. ]
Expert answered|wisbest|Points 1806|
Question
Asked 2/8/2013 4:16:49 PM
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
To determine the formula of a new substance, one of the first steps is to find the a molar mass b percent composition c volume at STP d number of particles per mole
Question
Not Answered
Updated 2/3/2015 9:08:21 PM
1 Answer/Comment
To determine the formula of a new substance, one of the first steps is to find the: percent composition.

Added 2/3/2015 9:08:21 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [4/23/2016 8:01:43 PM]
If 20.0 grams of Ca combines completely with 16.0 grams of S to form a compound, what is the percent composition of Ca in the compound? a 1.25% b 20.0% c 44.4% d 55.6%
Weegy: 44.4% is the percent composition of S in the compound. User: If 20.0 grams of Ca combines completely with 16.0 grams of S to form a compound, what is the percent composition of Ca in the compound? Weegy: The total mass of the compound is 20 + 16 g, or 36 g. Of that 36 g, 20 is Ca. [ So the fraction of Ca is 20 / 36. To change that to % multiply by 100, so.. % Ca is 20 / 36 X 100% or 55.555555% ( ] (More)
Question
Expert Answered
Asked 2/1/2013 11:23:09 PM
0 Answers/Comments
The lowest whole-number ratio of the elements in a compound is called the a empirical formula b molecular formula c binary formula d representative formula
Weegy: C. empirical formula User: What is the empirical formula of a substance that is 53.5% C, 15.5% H, and 31.1% N by weight? A) C3HN2 B) C4H14N2 C) C2H7N D) CH4N7 Weegy: Empirical formula: C2H7N User: Which of the following is NOT true about empirical and molecular formulas? a The molecular formula of a compound can be the same as its empirical formula. b The molecular formula of a compound can be some whole-number multiple of its empirical formula. c Several compounds can have the same empirical formula, but have different molecular formulas. d The empirical formula of a compound can be triple its molecular formula. (More)
Question
Expert Answered
Asked 2/1/2013 11:31:49 PM
0 Answers/Comments
Which of the following compounds has the lowest percent gold content by weight? A) AuOH B) Au(OH)3 C) AuCl3 D) AuI3
Weegy: compounds has the lowest percent gold content by weight: D) AuI3 molar mass AuOH = 213.997 g/mol % Au = 196.97 x 100 / 213.997 = 92.1 molar mass Au(OH)3 = 247.99 g/mol % Au = 196.97 x 100 / 247.99=79.4 molar mass AuCl3 = 303.329 g/mol % Au = [ 196.97 x 100/ 303.329=64.9 molar mass AuI3 = 577.682 g/mol % Au = 196.97 x 100 / 577.682 =34.1 ] User: Which of the following compounds have the same empirical formula? A) CO2 and SO2 B) C7H14 and C10H20 C) C4H10 and C10H4 D) C6H12 and C6H14 (More)
Question
Expert Answered
Asked 2/1/2013 11:28:03 PM
0 Answers/Comments
Write the slope intercept form of the equation of the line that passes through (-2, -3) and (2, -5). a y = -2x - 7 b y = 1/2x + 4 c y = -1/2x - 4 d y = -2x + 1
Question
Not Answered
Updated 9/16/2014 7:50:10 AM
1 Answer/Comment
y = -1/2x - 4 is the equation that writes in the slope intercept form of the equation of the line that passes through (-2, -3) and (2, -5 ) .
Added 9/16/2014 7:44:39 AM
Deleted by jeifunk [9/16/2014 7:50:06 AM], Undeleted by jeifunk [9/16/2014 7:50:08 AM]
27,019,591 questions answered
Popular Conversations
emotive language
Weegy: Emotive language is language that arouses the emotions, such as that used in sensational newspaper headlines. ...
2/22/2017 7:31:53 AM| 3 Answers
What was the Bay of Pigs? A. an American military base in Puerto ...
Weegy: The Bay of Pigs is a failed attempt by the U.S. to invade Cuba and overthrow the communist Castro regime. ...
2/21/2017 7:28:35 AM| 2 Answers
Finish this famous quote, "If you were going to give rock-and-roll ...
Weegy: If you were going to give rock n' roll another name, you might call it "Chuck Berry." User: Which of ...
2/21/2017 2:15:20 PM| 2 Answers
Jose is applying for a new job. In preparation, he ...
Weegy: c User: The range that people consider to be comfortable distance is often determined ...
2/21/2017 2:16:32 PM| 2 Answers
In 1949, the Communists won control of mainland China and established ...
Weegy: In 1949, the Communists won control of mainland China and established the People's Republic of China under Mao ...
2/21/2017 3:34:28 PM| 2 Answers
Solve 1 – 2x – 1 = –10. A. x = –9 B. x = 5 C. x = 9 D. No ...
Weegy: 8x + 10 = 2x - 8; 8x - 2x = -8 - 10; 6x = -18; x= -18/6; x = -3. The answer is A. x = -3
2/22/2017 9:01:03 AM| 2 Answers
What is the currency of the United ...
2/22/2017 10:41:35 AM| 2 Answers
Weegy Stuff
S
P
P
L
Points 403 [Total 1172] Ratings 2 Comments 383 Invitations 0 Offline
S
P
P
L
P
P
Points 322 [Total 2296] Ratings 1 Comments 312 Invitations 0 Offline
S
P
P
L
P
Points 226 [Total 1440] Ratings 0 Comments 226 Invitations 0 Offline
S
Points 30 [Total 30] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 12 [Total 112] Ratings 1 Comments 2 Invitations 0 Offline
S
Points 12 [Total 22] Ratings 1 Comments 2 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
S
Points 5 [Total 5] Ratings 0 Comments 5 Invitations 0 Offline
S
Points 3 [Total 3] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 2 [Total 2] Ratings 0 Comments 2 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.