Some examples of exothermic processes include formation of ice cubes, condensation of rain from vapor, rusting iron, burning sugar and mixing water with acids. Examples of endothermic processes include melting solid salt... More » Science Chemistry

Vaporization is an example of an endothermic reaction. In chemistry, vaporization is defined as the transformation of a solid or liquid into gas. This is caused by either evaporation or boiling. More » Science Chemistry States of Matter

Melting is a process involving absorption of energy, which means that it is endothermic. A process whereby energy is released into the atmosphere or surrounding region is called an exothermic process. More » Science Chemistry Atoms & Molecules
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An easy example of a solid, liquid and gas is ice, water and water vapor. Solid, liquid and gas are the three main forms that matter can exist in. Solid water is ice, liquid water is water and gaseous water is water vapo... More » Science Chemistry

Petrochemicals are organic chemicals made from crude oil and natural gas for use in industrial processes. Examples of primary petrochemicals include methanol, ethylene, propylene, butadiene, benzene, toluene and xylene. ... More » Science Chemistry

Examples of chemical changes include burning of wood, digestion of sugar, an exploding firecracker, reactions between salts and acids and lighting a matchstick. A chemical change involves changes at the atomic and molecu... More » Science Chemistry

Examples of acids include vinegar, citrus fruits, tomato juice, black coffee, bananas, milk, sulfuric acid, battery acid and hydrochloric acid, which is a digestive compound found in the stomach. Acids are ionic compound... More » Science Chemistry