cells and batteries

what is a cell

A cell is a device that converts chemical energy into electrical energy, typically consisting of two electrodes and an electrolyte.

why is the electrolyte a liquid that contains ions which react with the electrodes

because the chemical reactions between the electrodes and the electrolyte dry up a charge different between the electrodes

What factors affect the voltage of a cell in chemistry?

The voltage of a cell is influenced by the types of electrodes (due to difference in reactivity)

, the concentration of the electrolyte, temperature ( different ions in a solution will react differently with electrodes)

and the overall cell design - a battery is formed by connecting two or more cells tg in a series.

in a non rechargeable battery, do the reactants get used up and why

yes because the chemical reactions that happened at the electrode in a non rechargeable battery is irreversible

this means that the products cang be turned back into the reactants so the cell can’t be recharged

how can a reaction be reversed in a rechargeable cell?

by connecting it to an external electric current

bigger difference in reactivity means what for the voltage?

it will have a bigger voltage