If the valency of oxygen is 2, derive the valencies of the other elements present in the following oxides. Na2O, ZnO, Al2O3, MgO,

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Chemistry

Ayla Hines

17 January, 04:08

If the valency of oxygen is 2, derive the valencies of the other elements present in the following oxides. Na2O, ZnO, Al2O3, MgO,

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Rolex · Answer 1

1) Na20

let the valency of Na is x

2 (x) + 2=0

+2x+2=0

2x=-2

x=-1

2) ZnO

let the valency of Zn is x

x+2=0

x=-2

3) Al2O3

let the valency of Al is x

2 (x) + 3 (2) = 0

2x+6=0

2x=-6

x=-3

4) MgO

let the valency of Mg is x

x+2=0

x=-2