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You need to remember what the classes of chemical compounds are: metalic class, ionic class and covalent class.
The chemical binary compounds that form the metalic class consist of two metals.
The ionic class contains binary compounds that have one element that is a metal and one element that is non-metal.
The covalent class consists of binary compounds that have two elements, both non-metals.
The following list contains 10 of the common chemical compounds: NaCl (sodium chloride - salt) , KCl ('potassium chloride) , HCl (muriatic acid) , MgCl2 (magnesium chloride), CaCO3 (calcium carbonate), H2SO4(sulphuric acid), SiO2(quartz), FeS2 (iron pyrite), KNO3(saltpeter), K2CO3(potash).
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