Empirical formula

Formula that informs about the constituent elements and the proportion in which they are found, but not about the actual amount of atoms in a molecule or grouping. It is the simplest formula.
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Chemical Glossary Terms

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F
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P
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Chemical Terms begining with F

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Phase

A homogeneous part of a system physically differs in composition and properties to the other parts o...

Feldspar

Minerals of the silicates group. They are made up of silicon and oxygen plus other components. Alumi...

Femic or ferromagnesian

They are silicate minerals of iron and magnesium such as biotite, amphiboles and pyroxenes.

Phenol

Alcoholic derivative of benzene, is a colorless solid that melts at 41ºC. It has a characteristic s...

Fermentation

Sequence of biochemical reactions of transformation of an organic substrate produced by the enzymes ...

Fermio

Chemical element is symbol Fm, belonging to the series of actinides, of atomic number 100. It is a r...

Ferromagnetism

Property of some substances or materials in which, under the action of a sterno magnetic field, a ma...

Fertilizers

Organic or mineral substance that contains one or several chemical elements essential for the growth...

Filtration

Method of separation of a pure liquid or solution containing an insoluble solid substance by a porou...

Filter

Porous device that allows to separate solids from liquids. The solid substance is deposited in the f...

Nuclear fision.

Process of dividing an atomic nucleus of a heavy chemical element, such as uranium 235, into two mai...

Flocculation

Sedimentation in the form of flakes in a colloidal dispersion by adding an electrolyte to a lyophobi...

Fluid

Material substance whose particles have a high mobility, moving freely due to the lack of cohesion b...

Fluorine

Chemical element is symbol F, belonging to group 17 of the periodic table, of atomic number 9 and at...

Fluorescence.

Emission of light by some substances due to the excitation of their electrons. If the emission of li...

Fluorides

Binary combinations of fluorine on another element. Due to the electronegativity of fluorine, a larg...

Formaldehyde

The simplest and most important of the series, called methanal. It is a colorless gas that dissolves...

Formula

Representation of the composition of a substance by the symbols of the constituent elements and the ...

Empirical formula

Formula that informs about the constituent elements and the proportion in which they are found, but ...

Structural or developed formula

Formula that represents the arrangement in the space of the bonds between the atoms that form the ba...

Molecular formula

Real formula of the compound constituent molecule that reports the number of real atoms of each cons...

Phosphates

Salts that come from phosphoric acid, eg, ammonium phosphate, (NH4) 3PO4

Phosphorescence

Emission of light by certain materials when they are excited, this remains some time after the excit...

Match

Chemical element is symbol P, belonging to group 15 of the periodic table, of atomic number 15 and a...

Photon

How much energy of electromagnetic radiation. There are as many kinds of photons as there are freque...

Photosynthesis

Metabolic process that requires the use of sunlight energy by cyanophyceous cells, some bacteria and...

Molar fraction

Way of expressing the concentration of a mixture or dissolution that indicates existing between the ...

Francio

Chemical element is symbol Fr, belonging to group 1 of the periodic table, of atomic number 87. It i...

Fructose

Monosaccharide of six carbons with ketone function, is found in fruit and honey, and also in some ol...

Ionic force.

Property of a solution that depends on the total concentration of ions in the solution, as well as t...

Van der Waals forces

Force of electrostatic type that appear in the interactions between covalent molecules, especially w...

Dipole-dipole forces.

Forces caused by the attraction between molecular dipoles. For example, the HF has a positive and a ...

Intermolecular forces

Attractive and repulsive force between the nuclei of the atoms and the electrons that surround them....

Fusion

Change of state from solid to liquid that occurs at a certain temperature and pressure and is differ...

Nuclear fusion

Nuclear reaction that occurs when two simple nuclei are combined and another more complex is obtaine...

Temas de química mas buscados

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Pinzas de laboratorio

Son un tipo de sujeción ajustable, generalmente de metal, que forma parte del equipamento de laboratorio, mediante la ...

¿Que es la Química? Química General

¿Qué es la Química General? La química general es la base de todas las químicas y en el...

Noticias de Química

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Incremento de estudios online en el área científica

El mundo de la ciencia ha cambiado significativamente en los últimos años debido al av...

La importancia de estudiar química

La importancia de estudiar química La química es una de las ciencias fundamentales ...

¿Qué es un manipulador de alimentos?

¿Qué es un manipulador de alimentos? Un manipulador de alimentos es una persona que tr...

Cómo estudiar química según Sergio Jacinto Gil García

La química es la ciencia que se encarga de estudiar las propiedades, composición y tra...

Tierras raras

El nombre de tierras raras se ha dado a un conjunto de 17 elementos químico como lo son:...

Tipos de plásticos de la industria química

Los plásticos son materiales duraderos, ligeros y fáciles de modificar ya que est&aacu...

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