How do you determine what is the anode and what is the cathode in electrochemical cells.

How do scientists think that gravity affected the formation of our solar system?

Can anyone answer these questions? ? i need it before 1: 00pm today

Time remaining 58: 10 an atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom? it accepted radiation in a chemical reaction it donated neutrons to another atom in a chemical reaction it emitted an alpha particle in a nuclear reaction. it accepted protons in a nuclear reaction. mark this and retum save and exit next submit