Which of the following respiratory chain complexes generate enough energy in passing a pair of electrons through the complex to be able to phosphorylate adp to atp? (you may assume that the adp and atp are at standard state concentrations.) the standard state free energy change for the phosphorylation of adp to atp is -30.5 k mol'. the standard state free energy change for electron transfer reactions in complex ii is -13.5 kj mol' (select all that apply.)
a. complex i
b. complex ii
c. complex iii
d. complex iv

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.