Consider the electrostatic model of the hydrogen bond. Th e N–C distance of the hydrogen bonded groups in proteins, such as occur in an a helix, is 0.29 nm. How much energy (in kJ mol−1 ) is required to break the hydrogen bond (a) in a vacuum (εr = 1), (b) in a membrane (essentially a liquid hydrocarbon with εr = 2.0), and (c) in water (εr = 80.0)?

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

that's what i got you can count the number of atoms

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.