Answer:
the valence electrons of atoms in a pure metal can be modeled as a sea of electrons
The most concentrated solution is b
That photon's energy is equal to Planck 's constant, multiplied by the light frequency, h is always 6.63* 10^ -34 Joule seconds and the frequency is 6* 10^ 14 Hz.
They are both helix it is just that DNA has two and RNA has one
