Name the hormone that controls

reabsorption of sodium ions

The hormone that controls the re absorption of sodium ions is Aldosterone

Explanation:

Aldosterone is a steroidal hormone which stimulates and plays a role in the process of absorption of kidneys to regulate the salt and water balance When there is a reduction in blood flow to the kidneys due to the enzyme Renin it automatically activates the aldosterone process reabsorption of sodium is a part of renal function and it is restored by the angiotensien Aldosterone plays an major role in water and the salt reabsorption into the blood via the kidney