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Chemical Change Examples

There are innumerable chemical change examples that occur around us all the time but we never notice them. Take a look at some daily chemical change examples that are often observed in the surroundings...

Last Updated On: Wednesday, June 30, 2010

 
 

For those of you who are wondering, what is chemical change, it is a reaction that takes place when chemical bonds are broken due to environmental conditions and new bonds are formed between different atoms. This formation of new chemical bonds leads to a completely different product. During this breakage and formation of chemical bonds between the atoms, the particles of the original material collide with each other. There are exothermic and endothermic reactions that take place due to this collision which either releases or generates heat. This heat in turn causes certain chemical elements to undergo change in appearance and conditions. It is a common rule that whenever there are chemical reactions in nature, there is rearrangement of atoms and this is accompanied with an energy change forming new products. One of the very common chemical change examples is the reaction between sodium hydroxide and hydrogen chloride to form sodium chloride (NaCl) or table salt. There are more such chemical change examples mentioned in the following paragraphs, so take a look.

Examples of Chemical Change
With the above mentioned elaborated chemical change definition, you must have guessed what it is all about. If not, simply remember, that if you have one black crayon and one white, you color them over each other and get a completely different color, gray! That is exactly what a chemical change is, except that there are real atoms involved in them. In these chemical changes there are two types that take place, viz. the organic and the inorganic type of changes. Thus, let's take a look at some easy and everyday chemical change examples mentioned just for you below. More on chemical properties of elements.

Organic Chemical Change Examples
These chemical change examples involve organic compounds like isomers and those with chemical structures. When these organic compounds which have single, double and triple chemical bonds, break to form other compounds, they may or may not release heat. Read more on types of chemical bonds. Thus some of these chemical change examples are exothermic (release heat) or endothermic (use heat) for their reactions. One very important fact about all organic chemical changes or reactions is that they are not reversible. They cannot be brought back to their original forms after the change has taken place.

Burning a log of wood
Heating popcorn
Baking a cake or pancakes
Frying or boiling and egg
Photosynthesis - a process in which carbon dioxide and water are changed into sugars by plants.
Rotting of fruit
Rusting nail
Roasting a marshmallow
Digestion of food
Moldy cheese
Souring milk
Curdling of milk
Polymerization of gels
Different metabolic reactions in the cells
Decomposition of waste
Formation of energy in the cells of plants and animals

Inorganic Chemical Change Examples
For this type of chemical change, the concept of thermodynamics is completely applicable, as these reactions too are exothermic as well as endothermic. They are formed by using inorganic compounds like water, acids and bases. Inorganic chemical reactions and changes are however, reversible as well as irreversible. There are many inorganic compounds that can be isolated from their changed forms and brought back to their original states. Some such inorganic chemical change examples are given below, so take a look. More on sodium properties.

Double displacement or metathesis
Hydrolysis of substances
Polymerization
Paper becomes ash
Processing film with the help of light
Mixing an acid with a base, producing water and a salt
Cracking heavy hydrocarbons to create lighter hydrocarbons (part of the process of refining oil)
Combustion
Explosion of fireworks
Mixing chemicals
Burning a magnesium strip
Tarnishing silver
Lighting a match
Burning gas in a stove
Oxidizing food for energy
Freezing water
Evaporating water
Melting ice
Defusing air

Thus, with such a wide variety of chemical change examples, you probably will be able to identify which chemical reaction around you is in which form. If there were no chemical reactions in the world, evolution would have never been possible, since it is Chemistry that runs nature!

 

Chemical Change, Chemical Bonds, Atoms, Original Material Collide, Exothermic, Endothermic Reactions, Chemical Reactions In Nature, Sodium Hydroxide, Hydrogen Chloride, Sodium Chloride, Chemical Properties, Decomposition of Waste, Inorganic Chemical Change Examples, Polymerization, Processing Film, Oxidizing Food for Energy, Evaporating Water, Freezing Water, Melting Ice