38. Calculate What is the enthalpy change (AH) in kJ for the following reaction?
2Al(s) + Fe2O3(s) -
- 2Fe(s) + A1,03(s)
Use the enthalpy changes for the combustion of
aluminum and iron:
2Al(s) + O2(g) - A1,03(s) AH = -1676.0 kJ
2Fe(s) + O2(g) - Fe,03() AH = -822.1 kJ
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d.) circle motion requires a force to give it a centripetal acceleration.

hcl + naoh → h2o + nacl

explanation:

hcl + naoh → h2o + nacl   is the reaction that is correctly balanced.

however, pcl3 + h2 → ph3 +3hcl, 2ca+ 3cl2 → cacl3, and c5h12 + 5o2 → 5co2 + 6h2o are not correctly balanced.