A galvanic cell consists of two half-cells. In other words, a galvanic cell consists of two electrodes dipping into the same or two different electrolytes. There are several types of electrodes. Some commonly used electrodes are: a) Metal-Metal ion electrode A metal-metal ion electrode consists of a metal rod or plate dipping into a solution … Read more
There are some common methods used from preventing the rusting of iron which are described here below: i) By surface coating Rusting of iron can be prevented by coating the iron surface with oil, grease, paint and varnish, etc. Image source: Tampasteel ii) By electroplating iron with corrosion-resistant metals Certain metals like nickel, chromium do … Read more
The cyclic movement of nitrogen between atmosphere and living organisms or the exchange of nitrogen between atmosphere and living organisms is known as nitrogen cycle. It is also one of the gaseous-cycle. Nitrogen is the most essential element for almost all forms of life. Living organisms need nitrogen atoms to make amino acids, proteins, enzymes, … Read more