Top Posters
Since Sunday
r
4
L
4
3
d
3
M
3
l
3
V
3
s
3
d
3
a
3
g
3
j
3
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
cloveb cloveb
wrote...
Go to Answer
Valued Member
Posts: 782
Rep: 62 1
7 years ago
What energy change is associated with the reaction to obtain 1.00 mole of H2? The balanced equation is:
2 H2O(g) → 2 H2(g) + O2(g)
and the relevant bond energies are:
H-H : 436 kJ/mol; H-O : 467 kJ/mol;
O-O : 146 kJ/mol; O=O : 498 kJ/mol.

1. +425 kJ
2. +249 kJ
3. −425 kJ
4. +498 kJ
5. -498 kJ
6. −436 kJ
Read 155 times
1 Reply
Replies
Answer verified by a subject expert
bolbolbolbol
wrote...
#1
Staff Member
Top Poster
Posts: 3213
Rep: 263 2
7 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

cloveb Author
wrote...

7 years ago
This helped my grade so much Perfect
bahajo
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
lubennick
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1726 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 2204
  
 371
  
 1579