Pls help need it NOW Most of the mass of an atom is concentrated predominantly…

a=in the nucleus

b=in the electrons

c=in the neutrons

d=in the positrons

This is the substance(s) formed in a chemical reaction.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell