Electrolysis of water a small-scale electrolytic cell. It consists of three joined upright cylinders. The inner cylinder is open at the top to allow the addition of water and the electrolyte. A platinum electrode is placed at the bottom of each of the two side cylinders, connected to the positive and negative terminals of a source of electricity. When current is run through the Hofmann voltameter, gaseous oxygen forms at the anode (positive) and gaseous hydrogen at the cathode (negative). Each gas displaces water and collects at the top of the two outer tubes, where it can be drawn off with a stopcock.
Mina (given name) Mina (given name) Mina is a given name with a variety of origins, used as a feminine name in some cultures and a masculine name in others. Mina (; ), also transcribed Mena or Meena, is a male given name for Egyptian Christians. Meena (Arabic: mīnā' مِينَاء) is the irregular feminine noun for port. See Mina (disambiguation) Meena or Mina is an Indian tribe. Meena, or Mina, is a name given to females in India. It is commonly used by Christians, Hindus and Parsees. The name is a shortened form of Meenakshi (beautiful fish-shaped eyes; Meen = fish; akshi =