Chemistry in everyday life: +30 Examples

As soon as you open your eyes and visualize the environment, you become aware of the presence of chemistry. For example, various retinal pigments are involved in vision. Then, when you get up and bathe, you use water, a chemical compound , and soaps, also made up of chemical compounds.

The same applies to the clothes we wear, made with fabrics made up of numerous chemical elements. Likewise, the foods we eat are nothing more than complex mixtures of organic and inorganic compounds; such as sodium chloride, sucrose, proteins, lipids, etc.

Afterward, they brush their teeth, using surfactant-rich toothpaste. In addition, the toothbrush is made of plastic material, a chemical product of the chemical polymerization process.

Examples of chemistry in everyday life


The air we breathe is made up of 78% nitrogen and 21% oxygen, while the remaining 1% is made up of hydrogen, water vapor, carbon dioxide, and noble gases, such as argon and helium.


From this apple tree we could extract thousands of examples and natural chemical compounds. Source: W.carter / CC0

The leaves of the plants are green due to the presence of chlorophyll, a pigment with a complex chemical structure and in the center of which it has a magnesium atom. Chlorophyll is involved in the conversion of light energy into chemical energy.


Water is the most important chemical for life and its understanding. Source: Pixnio.

Water is a chemical compound formed by the reaction of two hydrogen atoms with one oxygen atom. Water is present in all living things.


Tar is a black substance, made up of numerous chemical compounds. Tar is responsible for the blackening of the teeth of smokers.

White hair

Hair turns white as we age. This change is due to the fact that melanin, the pigment responsible for hair coloring, is no longer produced.

The juice of the lemon and that of some oranges is acidic due to the presence of organic acids, including citric acid.


By lighting a fire we witness a controlled carbonization. Source: Pixabay.

When wood is burned, it turns to ash in a process called charring. That is, wood is transformed into carbon, since it is made up of carbon.

Hair colors

The color of people’s hair varies with their race and their genetic makeup, being caused by the type of pigment melanin that has the greatest amount.


The ladies use water to bleach their hair before coloring it, and they use acetone, a chemical solvent, to remove the remains of nail polish, before putting on a new polish.


The glass used to drink the water is usually made of glass material. The main constituent of glass is silicon oxide, a compound very abundant in nature and especially in sand.

Fizzy drinks

Carbonated soft drinks have dissolved carbon dioxide, which gives them the effervescence that produces a pleasant sensation. They also have caffeine, phosphoric acid, dyes, and sugar.


The car battery supplies the electrical energy to start the starter motor and allow it to move. In the battery a chemical reaction occurs mediated by sulfuric acid that generates electricity.


The association of glue and similar products with chemistry is immediate. Source: Pexels.

Glues or adhesives are substances that are used to glue paper, plastic, wood, etc. They are made of polymers that can be of mineral, animal or plant origin.


Plant crops are fertilized with chemical compounds that provide nitrogen, phosphorus and potassium, which are the main nutrients for plants.


Deodorants are products that are used to protect against the bad smell of sweat. Many of them have aluminum hydrochloride, an antiperspirant compound that has, however, been linked to breast cancer.


Sunscreen combines organic and inorganic chemicals to filter sunlight and prevent it from penetrating the skin. The reflective particles in sunscreen usually consist of titanium oxide or zinc oxide.

Ethyl alcohol

Ethyl alcohol is an organic compound that is used in disinfection and sterilization processes, being used when small wounds are produced on the skin or for deep cleaning of the skin.


Vinegar is a dilute solution of acetic acid, used to season and preserve food. Vinegar is produced biologically by the fermentation of sugar.

Mouth rinses

The dental protection provided by mouthwashes is due to their active ingredients. Source: Pexels.

Mouthwashes are solutions used to eliminate halitosis (bad breath) by disinfecting the oral cavity. These liquids are solutions of ethanol, fluorine and substances with antiseptic action.


Vehicle tires are made from rubber, an elastic polymer made from latex. Said latex consists of a secretion obtained from many plants, although it can also be produced synthetically.


Clouds are made up of water vapor and are usually white in color. However, when the water content of them is very high, they acquire a blackish color, an omen of rain.


Plastic material is a polymer of organic chemical compounds known as monomers. Plastics are part of many items used in homes and in industry.

Hydrogen peroxide

Adding hydrogen peroxide (hydrogen peroxide) to a wound causes bubbles to form. This is due to the release of oxygen by an enzyme in the blood, and not because a disinfection process has been carried out.


Mayonnaise is a kind of sauce used as a salad dressing. It consists of an emulsion of oil, water and egg yolks, beaten in a controlled manner until obtaining mayonnaise.

Muscle contractions

Whether you blink or lift a weight , a muscle contraction occurs. During this, energy consumption occurs that comes from the hydrolysis of ATP (adenosine-triphosphate).

Cook an egg

When an egg is boiled or fried, it is observed to change its appearance. For example, the white of the egg ceases to be a translucent liquid to become a white solid, a product of the coagulation of proteins by the action of heat.

Heavy dinners and digestion

Before sleeping, it is not recommended to eat foods rich in lipids. This is because the digestion process of such chemical compounds is slow and could generate responses incompatible with a pleasant sleep.


Milk is a complete food, since it has a high concentration of proteins (3.4%), carbohydrates (5%) and fats (3-6%). In addition, it has minerals such as calcium in a concentration high or equal to that of vitamins.


Mirrors are one of the most curious and brilliant examples of chemistry

A mirror is a sheet of glass covered on its back by a layer of paint based on mercury or aluminum.

Metal oxidation

Metals when exposed to air can undergo oxidation. Such is the case with iron. The oxidation of metals produces important economic losses, so they are chemically treated to avoid it.


The ink used to write on paper is composed of pigments, chemical substances dissolved in a solvent that facilitates its rapid drying, thus avoiding damage to the paper.


Animal fat is used to make soap. Soap is made from a saponification reaction, which reacts a hydroxide with an organic molecule (the fat) to produce glycerol and crude soap. Soaps are emulsifiers.

The chemistry of falling in love

When a person falls in love, his brain undergoes various changes and certain chemical compounds are released. Love is felt by the release of certain hormones: oxytocin, endorphins, and vasopressin.

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