An acid is a substance that gives hydrogen ion H+or a hydronium ion H3O+when dissolved in water.

An acid is a substance that gives hydrogen ion H+or a hydronium ion H3O+when dissolved in water.

Activation energy is the value of energy that is needed by the reactants to break molecular bonds, leading to products.

In chemistry, alcohol is any organic compound in which a hydroxide group (-OH) is bound to a carbon atom, which in turn is bound to other hydrogen an ...

Amino group, in chemistry, functional group that consists of a nitrogen atom attached by single bonds to hydrogen atoms, alkaline groups, aryl groups ...

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.

An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every atom is composed of a nucleus and one or more ...

Base is a substance which gives hydroxide ion OH-when dissolved in water.

Biochemical codification is given by the succession of nitrogenous bases from the structures of the nucleotides.

Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressur ...

Bonds are usually created by a transfer or sharing of one or more electrons.

A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as i ...

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.

A chemical element is a species of atom having the same number of protons in their atomic nuclei.

The chemical process is an important phenomenon in chemical industry, which involves various chemical reactions due to which new chemical compounds a ...

Cohesion is the property that makes molecules attracted to one another. The cohesive forces between liquid molecules are responsible for the phenom ...

Mixture comprising two distinct phases, one dispersed, the other continuous

In chemistry, concentration refers to the amount of a substance per defined space. Another definition is that concentration is the ratio of solute in ...

Concentration is the ratio of solute in a solution to either solvent or total solution. Concentration usually is expressed in terms of mass per unit ...

Condensation is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization.

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or ...

The electron is a subatomic particle, symbol e− , whose electric charge is negative one elementary charge. The electron has a mass that is approxim ...

Fluid is a substance that continually deforms (flows) under an applied shear stress, or external force. Fluids are a phase of matter and include liqu ...

In organic chemistry, functional groups are specific substituents or moieties within molecules that are responsible for the characteristic chemical r ...

Gas phase ion formation. The process of converting an atom or molecule into an ion by adding or removing charged particles such as electrons or other ...

An ion is an atom or molecule that has a net electrical charge. Since the charge of the electron (considered negative by convention) is equal ...

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure

Liquid phase (plural liquid phases) (physics) One of the three fundamental structural phases of matter in which the thermal mobility of molecules or ...

Macromolecules are molecule comprising a big number of atoms.

With the exception of hydrogen, all elements that form positive ions by losing electrons during chemical reactions are called metals.

Mixture is a material made up of two or more different substances which are physically combined.

Strong chemical bonds are the intra-molecular forces which hold atoms together in molecules.

A monomer is a molecule that can be reacted together with other monomer molecules to form a larger polymer chain or three-dimensional network in a pr ...

An atom that has equal number of protons and electrons is called a neutral atom.

Each nucleotide that makes up a nucleic acid is made up of phosphoric acid, sugar (5-carbon), and nitrogenous base.

The central part of an atom, made up of neutrons, protons, and other elementary particles.

Orientation is the angle between the directions of the two colliding reactant particles.

The pH is a scale for measuring the acidity or basicity of an aqueous solution.

a reaction that combines alkene-type monomers through the addition of a reactant (an ionic or radical r.) to the double bond, followed by a second a ...

High molecular weight compounds which consist of a large number of repeating atomic groups bonded to each other by chemical bonds. Molecules are call ...

DNA molecule comprises of two polynucleotide chains. They are curved in the form of a double helix. Inside the spiral

A proton is a subatomic particle, symbol p+, with a positive electric charge. One or more protons are present in the nucleus of every atom; they are ...

Reactant is a molecule, atom or ion (= In general terms a particle) that combined with another particle of the same or of a different substance gives ...

A reaction or chemical reaction is a chemical change which forms new substances.

Redox reactions involve electron transfers; if one substance gains electrons, another substance (or more than one substance) must lose electrons.

The solution is a special type of homogeneous mixture composed of two or more substances.

Surface tension is a property of liquids that arises due to the fact that the molecules at the surface of a liquid have a different potential energy ...

Surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension.