You have new items in your feed. Click to view.
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
25,774,813 questions answered
Popular Conversations
Plants cannot grow without ...
7/23/2016 12:28:58 AM| 2 Answers
The Taiping Rebellion was centered in: A. Mongolia. B. Manchuria. ...
Weegy: The answer is letter A. All foreigners were expelled from China.
7/23/2016 3:58:56 PM| 2 Answers
Where is carbon taken in by plants during photosynthesis stored?
Weegy: Photosynthesis is a process in which green plants use energy from the sun to transform water, carbon dioxide, ...
7/24/2016 5:39:13 AM| 2 Answers
What is the major irony in the poem “Ballad of Birmingham” by Dudley ...
Weegy: Fighting for freedom has consequences. [ is the theme of Ballad of Birmingham? by Dudley Randall ...
7/24/2016 8:13:44 AM| 2 Answers
Most plants grow in the A horizon.
7/23/2016 12:27:31 AM| 1 Answers
Weegy Stuff
S
P
L
Points 509 [Total 1259] Ratings 1 Comments 499 Invitations 0 Offline
S
Points 192 [Total 613] Ratings 1 Comments 182 Invitations 0 Offline
S
P
Points 188 [Total 447] Ratings 1 Comments 178 Invitations 0 Offline
S
L
P
P
P
Points 159 [Total 2907] Ratings 0 Comments 159 Invitations 0 Offline
S
Points 88 [Total 227] Ratings 0 Comments 88 Invitations 0 Offline
S
L
P
P
P
Points 55 [Total 3759] Ratings 0 Comments 55 Invitations 0 Offline
S
Points 11 [Total 61] Ratings 1 Comments 1 Invitations 0 Offline
S
1
L
L
P
R
P
L
P
P
R
Points 8 [Total 12606] Ratings 0 Comments 8 Invitations 0 Offline
S
L
Points 3 [Total 1766] 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.