Bromine (Br) loses an electron, so it is the reducing agent. Bromine (Br) gains an electron, so it is the reducing agent. Chlorine (Cl) loses an electron, so it is the reducing agent. Chlorine (Cl) gains an electron, so it is the reducing agent.

A.(nh4)(2co3)is the correct answer 

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

Wow that a lot of text for my tiny so i no wanna answer

Answer246 k;