Name these compounds (a) N2O3 (b) Fe(HCO3)2 (c) Cu2SO4 (d) Ca3(PO4)2 ??

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    The names are (a) dinitrogen trioxide; (b) iron(II) hydrogen carbonate; (c) copper(I) sulfate; (d) calcium phosphate.
    (a) Dinitrogen trioxide
    Dinitrogen trioxide is a binary covalent compound. The di tells you that there are 2 N atoms and the tri tells you that there are 3 O atoms. The formula is NO.
    The other are ionic. The names = name of cation + name of anion.
    You will have to memorize the formulas and names of the common ions.
    (b) Fe(HCO)
    HCO is the hydrogen carbonate ion. Since there are two of these ions the Fe ion must be Fe. The name is iron(II) hydrogen carbonate.
    (c) CuSO
    SO is the sulfate ion. Since it has 2 negative charges the two copper ions together must have two positive charges. One copper ion then has one positive charge. It must be Cu the copper(I) ion. The name is copper(I) sulfate.
    (d) Ca(PO)
    Ca is the calcium ion. PO is the phosphate ion. The name is calcium phosphate.

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