Chemistry

Problem

Look at the list of ions below. Use them to work out the formula of compounds a–i. sodium, Na⁺ magnesium, Mg²⁺ iron(II), Fe²⁺ copper(II),

\text{Cu}^{2+}

chromium(III),

\text{Cr}^{3+}

aluminium,

\text{Al}^{3+}

fluoride,

\text{F}^{-}

chloride,

\text{Cl}^{-}

oxide,

\text{O}^{2-}

nitride,

\text{N}^{3-}

a. sodium fluoride b. sodium oxide c. sodium nitride d. iron(II) fluoride e. copper(II) oxide f. magnesium nitride g. aluminium chloride h. chromium(III) oxide i. aluminium nitride

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