A discharging lead-acid battery is best described as 1.) chemical cells that use an electrical current

2.) chemical cells that produce an electrical current

3.)electrolytic cells that use an electric current

4.)electrolytic cells that produce an electric current

The correct option is;

2.) Chemical cells that produce an electric current

Explanation:

A discharging lead-acid battery is an electrochemical cell that produces electrical energy through the chemical reaction taking place at the battery electrodes which have lead as the anode and lead oxide as the cathode which result in the flow of an electric current, thereby converting chemical energy of the lead, lead oxide and aqueous sulfuric acid system into electrical energy, therefore, it is a chemical cell that produces an electric current.

b. atoms in metallic solids are not arranged in a regular pattern

explanation:

it's c. elements are placed in rows based on how may valencies electrons have.