Biology Forums - Study Force

Science-Related Homework Help Chemistry Topic started by: gafsroom on Oct 28, 2013



Title: Stuck on a chemistry unit 3 question about bond energies to calculate energy chenges?
Post by: gafsroom on Oct 28, 2013
(note: im on study leave so i cant contact my teacher, this is revision, not homework)

Q) Use the bond energies to calculate the energy change for this reaction.
2H-O-O-H.    --->.  2H-O-H+ O=O
H-O  464
O-O 146
O=O  498


Then after this question it asks: explain, in terms of bond making and bond breaking, why the reaction is exothermic.


Title: Stuck on a chemistry unit 3 question about bond energies to calculate energy chenges?
Post by: SmartNurse21 on Oct 28, 2013
Content hidden