The best wavelengths of visible light for photosynthes's fall within the blue range (425-450 nanometers) and red range (600-700 nanometers). Calculate the frequency of a blue licht a wavelength of 4.30 x 10 meters
129 H7
1.43 x10-15 HZ
6.93 × 1014 Hz
6,98 HZ
143 hz

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.