Manganese

Chemical element of symbol Mn, belonging to group 7 of the periodic table, of atomic number 25 and atomic mass 54,938. It appears as a silvery white metal, hard and brittle. Chemically it is a very reactive element. It is used in the preparation of alloys such as ferromanganese, steel or manganese bronze.

Manganeso Manganese

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Chemical Glossary Terms

Chemical Terms begining with M

Macromolecule

Giant molecular structure that has a high mass, generally above 1000g7mol. The macromolecules give r...

Magnesium

Chemical element of Mg symbol, belonging to group 2 of the periodic table, of atomic number 12 and a...

Manganese

Chemical element of symbol Mn, belonging to group 7 of the periodic table, of atomic number 25 and a...

Pressure gauge

Apparatus used to measure the pressure of a gas contained in a container. The simplest is formed by ...

Marble

Metamorphic rock formed basically by calcite, with minor amounts of dolomite, graphite, diopside, qu...

Dough

Measurement of the amount of matter a body possesses. The mass is the same wherever the body is.

Molecular mass or molecular weight.

It is the sum of the atomic mass of each of the atoms that make up a molecule. The molecular weight ...

Matter.

Everything that has mass and occupies a place in space. Cathode rays are composed of matter because ...

Flask

Glass container with a spherical shape and a flat or spherical bottom, used in laboratories to conta...

Mechanism

Sequence of stages through which a chemical reaction takes place. The one that occurs in a single st...

Meitnerio

Chemical element of symbol Mt, belonging to group 9 of the periodic table, of atomic number 109. It ...

Mendelevium

Chemical element of Md symbol, belonging to the series of actinides, of atomic number 101. It is a r...

Mercury

Chemical element of symbol Hg, belonging to group 12 of the periodic table, of atomic number 80 and ...

Metals

Set of elements that are characterized by a metallic link and a series of common physical and chemic...

Alkali metals

Denomination of the set of the elements of group 1 of the periodic table. They are characterized by ...

Alkaline earth metals

Denomination of the set of elements of group 2 of the periodic table. All the elements belonging to ...

Metalloid.

Element with intermediate properties between metals and non-metals, for example: B, Si, Ge, Sb and T...

Methane

Saturated hydrocarbon, the simplest of the alkane series, is a colorless gas, poorly soluble in wate...

Methanol

Saturated aliphatic alcohol, the first in the series. It is a very toxic substance whose ingestion c...

Mixture

Combination of several substances such that the components retain their properties and can be separa...

Azeotropic mixture

Mixture of liquids that boils at a constant and common temperature for both liquids at a certain pre...

Racemic mixture

Mixture containing equal proportions of levorotatory and dextrorotatory forms of an optically active...

Microanalysis

Chemical analysis performed on quantities of very small substances, in the order of milligram. The m...

Minerals

Inorganic compounds of defined composition and with a crystalline structure due to the geological pr...

Mol

Amount of substance equivalent to the atomic mass or molecule expressed in grams of the element or c...

Molality

Way to express the concentration of a solution that indicates the number of moles of solute containe...

Molarity

Way to express the concentration of a solution that indicates the number of moles of solute containe...

Molecule

Grouping of two or more atoms bound by a covalent bond that forms a smaller particle that identifies...

Monovalent

Chemical element that has valence or oxidation number one. This means that it can form ionic or cova...

Manganese

Chemical Glossary Terms

Chemical Terms begining with M

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