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My Name ismy Email ismy phone number isPlease Send the detail information for me! There are four types of compounds, depending on how the constituent atoms are held together: molecules are joined together by covalent bonds, Ion bonding, the bonding compounds between metal compounds and certain complexes are joined together by covalent bonds. Chemical formula is a way of expressing information about the proportion of atoms that make up a particular chemical compound, using standard abbreviations for chemical elements, and indexes to show numbers. Amount of related atoms. For example, water consists of two hydrogen atoms bonded to an oxygen atom: the chemical formula is H2O.

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