During the light reactions of photosynthesis what takes place in order for oxygen to be released as a by-product? O An enzyme extracts electrons from water and supplies them to the P680 molecule.
O NAP+ accepts hydrogen and releases oxygen.
O Carbon dioxide is split allowing carbon to be released
An enzyme extracts electrons from water and supplies them to the P700 molecule.

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.