http://en.wikipedia.org/wiki/Hess%27s_law [2]
http://www.science.uwaterloo.ca/~cchieh/cact/c120/hess.html [3]
http://chemwiki.ucdavis.edu/Physical_Chemistry/Thermodynamics/Thermodyna... [4]
http://www.chemguide.co.uk/physical/energetics/sums.html [5]
http://www.chemteam.info/Thermochem/HessLawIntro1a.html [6]
http://www.chemteam.info/Thermochem/HessLawIntro1.html [7]
http://courses.washington.edu/bhrchem/c152/Lec04.pdf [8]
https://www.ugdsb.on.ca/uploadedFiles/cddhs/teachers/stewart/Hess%20Law.pdf [9]
http://smkh.ycdsb.ca/teachers/AGatto/SCH4U1/160CF23D-0119EDCC.82/Hess%27... [10]
http://mail.avon.k12.ct.us/~mburgess/FOV1-00028E08/FOV1-0002DA6D/Hess%27... [11]
http://www.chemistry-teaching-resources.com/Higher_Unit_3_Notes_files/He... [12]
Links
[1] https://hootsgo.org/?q=node/6442
[2] http://en.wikipedia.org/wiki/Hess%27s_law
[3] http://www.science.uwaterloo.ca/~cchieh/cact/c120/hess.html
[4] http://chemwiki.ucdavis.edu/Physical_Chemistry/Thermodynamics/Thermodynamic_Cycles/Hess%27s_Law
[5] http://www.chemguide.co.uk/physical/energetics/sums.html
[6] http://www.chemteam.info/Thermochem/HessLawIntro1a.html
[7] http://www.chemteam.info/Thermochem/HessLawIntro1.html
[8] http://courses.washington.edu/bhrchem/c152/Lec04.pdf
[9] https://www.ugdsb.on.ca/uploadedFiles/cddhs/teachers/stewart/Hess%20Law.pdf
[10] http://smkh.ycdsb.ca/teachers/AGatto/SCH4U1/160CF23D-0119EDCC.82/Hess%27%20Law_Section%205.3.pdf
[11] http://mail.avon.k12.ct.us/~mburgess/FOV1-00028E08/FOV1-0002DA6D/Hess%27s%20Law%20Worksheet.pdf
[12] http://www.chemistry-teaching-resources.com/Higher_Unit_3_Notes_files/Hess%27s%20Law%20Notes.pdf