Arrange the ff substances in order of increasing tendency to donate electrons with reasons Alpha- ketoglutarate, Oxaloacetate ,O2, NADP+, Malate

Alpha- ketoglutarate --> NADP+ --> Oxaloacetate --> O2.

(O2 has the HIGHEST tendency to donate electrons).

Explanation:

Okay, we are to Arrange Alpha- ketoglutarate, Oxaloacetate ,O2, NADP+ and Malate in order of increasing tendency to donate electrons, therefore, the correct order is;

Alpha- ketoglutarate --> NADP+ --> Oxaloacetate --> O2.

And this result can be gotten if we consider these compounds in their oxidative mechanism and check their potential values.

(1). When Alpha- ketoglutarate react with CO2, it gives isocitrate and standard redox potential value of -0.38.

(2). NADP+ with react with two moles of electrons and one mole of hydrogen ion to produce NADPH and standard redox potential value of -0.32.

(3). Oxaloacetate will react with two moles of hydrogen ion and electrons respectively to produce standard redox potential value of -0.18 and Malate.

(4). O2 will react with 4 moles of hydrogen ion and electrons respectively to produce 2 moles of water and standard redox potential value of +0.82.

CONCLUSION: the higher the negative values of the potential, the lesser the electron affinity and vice versa.

the objects have the same charge is correct.

nathan lee

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