Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

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The Chemical Nomenclature STEM Certificate is a self-guided program that provides guidance on rules related to naming in chemistry, including: binary compounds, Types I & II ionic compounds, ...

There are different ways to separate mixtures, for example by filtration, crystallisation, distillation, or chromatography. The method chosen depends upon the type of mixture. Periodic table - OCR ...