What is Chemical Change

At the behest of the science, a chemical change is he thermodynamic type process from which one or more substances, after the action of an energy factor, are converted into other substances, which in the jargon are called products.

Process in which the nature of a substance will be altered

In these processes the nature of the substance in question is altered, emblematic examples of this type of change being combustion and corrosion.

In the aforementioned chemical reaction what will be altered is the structure and composition of matter, because the initial substances will become different ones.

Meanwhile, substances can become elements, which is a type of matter made up of atoms that have the same class, or in chemical compounds, which is the substance made up of the union of two or more chemical elements.

A typical example of chemical change is one that occurs when the oxygen that inhabits our body reacts air with iron and that give rise to iron oxide, precisely composed of the elements of iron and oxygen.

It should be noted that the conditions in which the chemical reaction occurs can affect the result of the products, however, after many studies it can be stated that the amounts normally remain unchanged. modifications.

Meanwhile, the concept of chemical equations is that description into symbols of a chemical reaction.

The use excluding that is attributed to them is to describe what happens in a given chemical reaction, from the beginning and to the end of it.

In the equation, then, the formulas of the substances involved in the reaction will be inscribed.

The reagents will be placed on the left side and on the right the products.

Factors that allow distinguishing this type of change and the difference with physical change

There are a series of conditions that allow warning when chemical changes occur, among them the following stand out: change in color, absorption or heat leakage, gas segregation, appearance of a residue, alteration in odor, presence of acidity, appearance of magnetic, optical or electrical.

As we have already mentioned, chemical changes imply a transformation in the nature of the matter, meanwhile, when the change occurs on the surface only, remaining there, it will try a physical change.

The most concrete and forceful way to realize if we are facing a physical or chemical change is by observing if new substances appear when the change is generated, or failing that, one that already existed disappears, if this occurs, then it is a chemical change, and if, on the contrary, there are no changes in the component substances, it will be a change physical.

Combustion and corrosion, most common chemical changes

The combustion It is a type of chemical reaction that is very frequent to observe and that stands out especially for presenting a release of Energy very important, both in terms of light and heat and whose most popular visual manifestation is fire.

It is rigorous that in any combustion the element that burns intervenes, which will be the fuel, and on the other hand the one that causes combustion, which is designated as oxidizer.

Among the most common fuels we find organic materials that have both oxygen and hydrogen.

And for its part, corrosion, another example of chemical change, consists of the progressive wear or destruction suffered by a material or substance.

In metals, such as iron, it is easily appreciated, because you will see a loss or deterioration of the properties of the same due to the interaction with the environment, which occurs naturally, and that metal is rust.

When metal is porous it can be totally destroyed.

You have to be very careful with these changes because they can cause contamination or serious accidents.

Among the most common factors that trigger corrosion, we must mention the atmosphere and the water that come into contact with the metal, for example, corrosion occurs more commonly in places where humidity and salt predominate, such is the case in areas of Beach.

How much more temperature no more corrosion will be generated.

Although it cannot be avoided if the corrosion of some materials can be reduced through the use of lacquers, paints, or varnishes that protect them.

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