Question and answer
2H2 + O2 - > 2H2O How many water molecules are created when 32 grams of oxygen react completely with 4 grams of hydrogen? A. 2 B. 20 C. 6.02 × 1023 D. 1.2 × 1024
1.2 x10^24 molecules of water
Expert answered|AmandaBeers2012|Points 0|
Question
Asked 1/11/2012 6:25:28 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
2H2 + O2 - > 2H2O How many moles of oxygen would react completely with 6 moles of hydrogen? A. 2 B. 3 C. 4 D. 12
Weegy: answer is A. 2 moles of oxygen would react completely with 6 moles of hydrogen (More)
Question
Expert Answered
Asked 1/11/2012 3:50:33 PM
0 Answers/Comments
If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced? Round to the nearest tenth. Don't forget the units. 2HCl + Na2SO4 - > 2NaCl + H2SO4
Weegy: according to the reaction 2 mol of HCl (mol-weight is 35.97 g/mol) will produce one mol of sulfuric acid (mol-weight is 98.079 g/mol), 20 grams of HCl is 20g/(35.97 g/mol) = 0,5560 mol, [ so we expect half of these for sulfuric acid 0,5560/2 = 0,2780 mol of H2SO4 or 0,2780 mol *98.079 g/mol = 27.3 grams. note: to achieve the reaction one has to use HCl in the vapor phase bubbling over sodium sulphate solution and cool the reaction continuously, this is because the tendency of the reaction is in the other way, as a matter of fact industrially sulfuric acid is dropped over sodium chloride to obtain gaseous HCl and sodium sulphate solution. ] (More)
Question
Expert Answered
Asked 1/11/2012 5:08:39 PM
0 Answers/Comments
2C2H6 + 7O2 - > 4CO2 + 6H2O In the combustion of ethane, shown above, how many moles of carbon dioxide can be produced from 1.00 mole of ethane? A. 0.500 mole B. 1.00 mole C. 2.00 moles D. 4.00 moles
Weegy: The answer is , C. [ 2.00 moles ; It says - read coefficients - that 2 moles C2H6 requires 7 moles of O2 to make 4 moles of CO2 and 6 moles of H2O If 2 moles of C2H6 make 4 moles CO2, then logically 1 mole will make 2 moles of CO2 /question/index?qid=20090416125646AADPJ1v ] (More)
Question
Expert Answered
Asked 1/11/2012 5:22:02 PM
0 Answers/Comments
17,376,093 questions answered
Popular Conversations
Find the product. (25x 2 + 20xy + 16y 2)(5x - 4y) 125x3 - ...
Weegy: (25x^2 + 20xy + 16y^2)(5x - 4y) = 125x^3 - 64y^3 User: These three points are collinear. (3, 6), (-2, -9), ...
9/15/2014 8:27:15 AM| 4 Answers
Find the quotient. (12x 2 - 10x -12) ÷ (3x + 2)
Weegy: (12x2 - 10x -12) ? (3x + 2) = 4x - 6. [smile] User: Simplify. 8 - 3(4 - 2x) User: Solve for x. |2x - 8| > 6 ...
9/15/2014 8:36:08 AM| 3 Answers
What is the slope of the line passing through the points (4, -2) and ...
Weegy: The slope of a line is 2/3. The slope of a line that is perpendicular to this line is -3/2. User: Add and ...
9/15/2014 9:10:05 AM| 3 Answers
Write an equation in slope-intercept form for the line that satisfies ...
Weegy: The equation in slope-intercept form for the line with x-intercept 12, and y-intercept 14 is y = -7/6x + 14 ...
9/15/2014 3:54:30 PM| 2 Answers
what is 30% of 56?
Weegy: 112
9/15/2014 1:06:43 AM| 1 Answers
A knowledge of Earth science is essential in many different careers, ...
Weegy: geologist
9/15/2014 5:36:56 AM| 1 Answers
Which French explorer claimed the area of present-day Canada for ...
Weegy: A. Samuel de Champlain
9/15/2014 5:40:19 AM| 1 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
P
C
L
Points 1690 [Total 26089]| Ratings 4| Comments 1650| Invitations 0|Offline
S
L
1
L
P
C
1
Points 1578 [Total 8109]| Ratings 8| Comments 1498| Invitations 0|Offline
S
L
1
1
1
1
L
1
L
Points 1185 [Total 10965]| Ratings 0| Comments 1185| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 1066 [Total 18238]| Ratings 2| Comments 1046| Invitations 0|Offline
S
L
C
P
C
1
L
L
P
C
1
Points 1038 [Total 16977]| Ratings 8| Comments 958| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 431 [Total 11677]| Ratings 0| Comments 431| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 393 [Total 18924]| Ratings 0| Comments 393| Invitations 0|Offline
S
L
Points 381 [Total 1051]| Ratings 0| Comments 381| Invitations 0|Offline
S
1
L
L
Points 348 [Total 5472]| Ratings 4| Comments 308| Invitations 0|Online
S
P
C
L
P
L
1
Points 45 [Total 6102]| Ratings 1| Comments 35| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.