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28 March, 12:21

Predict the formula of the ionic compound that would result from combining the monatomic ions formed by each pair of elements. Match each pair of elements to the appropriate formula, where M represents a monatomic cation and X represents a monatomic anion.

A M3X2

B M2X

C M2X3

D MX3

E MX

F MX2 A B C D E F Be and O

A B C D E F Mg and N

A B C D E F Li and Br

A B C D E F Ba and Cl

A B C D E F Rb and O

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  1. 28 March, 12:50
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    E - Be and O

    A - Mg and N

    E - Li and Br

    F - Ba and Cl

    B - Rb and O

    Explanation:

    Be and O

    Be is a metal that loses 2 e⁻ to form Be²⁺ and O is a nonmetal that gains 2 e⁻ to form O²⁻. For the ionic compound to be neutral, it must have the form BeO (E-MX).

    Mg and N

    Mg is a metal that loses 2 e⁻ to form Mg²⁺ and N is a nonmetal that gains 3 e⁻ to form O³⁻. For the ionic compound to be neutral, it must have the form Mg₃N₂ (A-M₃X₂).

    Li and Br

    Li is a metal that loses 1 e⁻ to form Li⁺ and Br is a nonmetal that gains 1 e⁻ to form Br⁻. For the ionic compound to be neutral, it must have the form LiBr (E-MX).

    Ba and Cl

    Ba is a metal that loses 2 e⁻ to form Ba²⁺ and Cl is a nonmetal that gains 1 e⁻ to form Cl⁻. For the ionic compound to be neutral, it must have the form BaCl₂ (F-MX₂).

    Rb and O

    Rb is a metal that loses 1 e⁻ to form Rb⁺ and O is a nonmetal that gains 2 e⁻ to form O²⁻. For the ionic compound to be neutral, it must have the form Rb₂O (B-M₂X).
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