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 »

When iron reacts with vinegar, the metal rusts and causes an exothermic chemical reaction, which produces heat. This is commonly reproduced in experiments with either an iron nail or steel wool and vinegar. More »

Oxygen is a highly soluble element that is critical to biological functions, notably respiration. It comprises about 16 to 21 percent of Earth's atmosphere, allowing it to be inhaled and converted to carbon dioxide to po... More »

Iron reacts with hydrochloric acid to produce dihydrogen and iron(II) chloride. When an HCl solution is added to iron powder, the H+ and Cl- ions from hydrochloric acid disassociate. The Cl- anions form ionic bonds with ... More »

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 »

Not all metal rusts, but the metals that do rust do so because of an oxidation reaction between the metal and water and oxygen. Oxidation is the process by which a substance incorporates oxygen into its molecular structu... More » Science Chemistry

Steel rusts because of chemical reactions that occur when it comes into contact with water and oxygen. Iron, one component of steel, combines with water and oxygen to produce hydrated iron (III) oxide, which is the chemi... More »