What is a compound in chemistry

Chemical compound


A material that consists of two or more elements that are in a fixed atomic and therefore also mass ratio to one another.

Source: CORIS glossary


The composition of a compound is characterized by a chemical formula that shows the ratio of the individual chemical elements in a compound.

For example, the compound boric acid, which contains the elements boron (symbol B), oxygen (symbol O) and hydrogen (symbol H) - with one element boron to 3 elements oxygen and 3 elements hydrogen - has the chemical formula B (OH)3. Boric acid will always contain the elements boron, oxygen and hydrogen in this 1: 3: 3 atomic ratio. If one were to change this relationship or the elements, this would result in a different connection.

Different compounds have different properties, which also differ from the properties of the sub-elements that make them up.

Source: GreenFacts

Terms from the field:

Element - molecule


English: Compound (s)
Español: Compuesto
Français: Composé chimique
Nederlands: Chemical connection

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