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Definitions and examples of three distinct chemical classifications: elements, compounds and mixtures.Key facts
- Facts about Compounds, Elements and Mixtures, for example:
- Elements only have one atom.
- Compounds have two or more elements combined by any chemical bond.
- Mixtures are two or more elements or compounds mixed but not chemically combined.
Transcript
An element
1 type of atom only
Such as iron (Fe)
A molecule
2 or more atoms joined by covalent bonds
Such as carbon dioxide (CO2)
A compound
2 or more elements combined by any chemical bond in a fixed ratio
Such as sodium chloride (NaCl), better known as salt
A mixture
2 or more elements …
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