Rusting is an example of a corrosion reaction involving iron coming in contact with oxygen. All metals corrode over time thanks to their reaction with oxygen. More » Science Chemistry

A substance that undergoes a change in a chemical reaction is called a reactant or reagent. Usually, chemical reactions comprise of the changes that only pertain to the movement of electrons in the forming and breaking o... More » Science Chemistry

Three types of nuclear change are fission, fusion, and radioactive decay. Nuclear change happens in nuclear reactions that change the number of protons in the reaction products. More » Science Chemistry Atoms & Molecules
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A burning candle is an example of a chemical change because the paraffin wax, which is a hydrocarbon, undergoes a chemical reaction with oxygen to form water and carbon dioxide gas. Because the chemical structure of 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

No, the rusting of iron is a chemical change because it is two substances reacting together to make a new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. Rusti... More » Science Chemistry