Three things are required for rust to develop: iron, water and oxygen. Rust, also known as iron oxide, occurs when water begins to react with carbon dioxide in the air to form a very weak carbonic acid, which causes the ... More » Science Chemistry

Iron rusts when it comes in contact with oxygen and water. It rusts faster in acid rain and salty water. Both oxygen and water are necessary for rusting, which is an oxidation reaction. More » Science Chemistry

Rust is caused when iron comes into direct contact with water and oxygen. Technically, rust comes from a chemical reaction between carbon dioxide from the air, water and the iron. Rusting is an oxidation reaction. More » Science Chemistry
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Chrome does rust, because it is a metal that readily interacts with moisture and oxygen. Chrome is formed by electroplating a metal with the element chromium, which has greater corrosion resistance than most other metals... More » Science Chemistry

Iron is abbreviated as Fe on the periodic table of elements and is considered to be a ferrous metal in group 8. Ferrous metals are commonly known for being magnetic, and they rust in the presence of oxygen. More » Science Chemistry

Elevated temperature, immersion in a humid and oxygen rich environment, contact with a metal that is lower in the electrochemical series, and mechanical agitation are conditions that cause an iron nail to rust faster. Ru... More » Science Chemistry

The oxidation reaction of iron and oxygen to form the substance that is commonly called rust occurs according to this equation: 4Fe + 3O2 = 2Fe2O3. Water is also required for this reaction to occur, but because the total... More » Science Chemistry Chemical Equations