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

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

Dissolving salt in water is an example of a chemical change. The dissolution leads the salt to break into sodium and chlorine ions, so it alters its essential chemical properties. Even though boiling salt water ends up l... More » Science Chemistry

Gasoline burning is an example of a chemical change, because this process produces water vapor and carbon dioxide. For something to be categorized as a chemical change, it must form new chemical substances. It also entai... More » Science Chemistry