Which chemical group contributes a negative molecule and when transferred, it increases a molecule's free energy? hydroxyl O amino O phosphate

Use the following reactions to answer the next two questions.       4PbO (s) → 4Pb (s) + 2O2 (g)                      ∆H° = 876 kJ       C (s) + O2 (g) → CO2 (g)                               ∆H° = -394 kJ       3PbCO3 (s) → 3PbO (s) + 3CO2 (g)              ∆H° = 258 kJ   A) Calculate ∆H° for the reaction: 2PbCO3 (s) → 2Pb (s) + 2C (s) + 3O2 (g)   B)Calculate the enthalpy change, ∆H° (in kJ) that is involved in the production of 2.50 gram of solid carbon

The difference between ΔH and ΔE is _________. that one refers to the system and one refers to the surroundings the change in temperature of the system the amount of pressure-volume work done by the system the change in mass of the system

In one of the reactions in the citric acid cycle, which provides energy for ATP synthesis, succinic acid is converted to fumaric acid: + 2H C4 H6 O4 succinic acid The reaction is accompanied by a coenzyme, flavin adenine dinucleotide (FAD): Part A Submit oxidized Indicate whether succinic acid and FAD are oxidized or reduced. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer reduced addition loss Request Answer → C4H4O4 fumaric acid FAD + 2H → FADH2 The reaction of FAD involves the The reaction of succinic acid involves the of hydrogen; therefore FAD is Reset Help of hydrogen; therefore succinic acid is