Chemical substance
Form of matter having constant chemical composition and characteristic properties.
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Chemical reaction
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
Properties of water
Polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue.
Polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue.
Water is the chemical substance with chemical formula ; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom.
Mixture
Material made up of two or more different chemical substances which are not chemically bonded.
Material made up of two or more different chemical substances which are not chemically bonded.
Chemical substance
Chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
Polymer
A polymer ( Greek poly-, "many" + -mer, "part")
A polymer ( Greek poly-, "many" + -mer, "part")
is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits.
Chemical element
A chemical element refers to all aspects of the species of atoms that have a certain number of protons in their nuclei, including the pure substance consisting only of that species.
Chemical composition
Chemical composition refers to identity and number of the chemical elements that make up any particular compound.
Chemical composition refers to identity and number of the chemical elements that make up any particular compound.
The chemical composition of a pure substance corresponds to the relative amounts of the elements that constitute the substance itself.
Registration, Evaluation, Authorisation and Restriction of Chemicals
European Union regulation dating from 18 December 2006.
European Union regulation dating from 18 December 2006.
REACH addresses the production and use of chemical substances, and their potential impacts on both human health and the environment.
Chemistry
Scientific study of the properties and behavior of matter.
Scientific study of the properties and behavior of matter.
It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.
Solubility
In chemistry, solubility is the ability of a substance, the solute, to form a solution with another substance, the solvent.