asmaahmed52 asmaahmed52

23-07-2020
Chemistry

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use the crossover method to find the chemical formula of a calcium oxide

Respuesta :

kweenisbah kweenisbah

23-07-2020

Answer:

CaO

how:

since its an iconic compound (metal(Ca)+non-metal(O)=iconic(CaO) we have to take account the charges

so;

[tex]Ca^{+2}[/tex] [tex]O^{-2}[/tex]

now we will cross them

[tex]Ca_{2} O_{2}[/tex]

since both the values are same will cross it out.

hence: CaO

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