In photosynthesis, what molecules are split into what and what atoms

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.