Question

Determina formula substantei ce contine 60%Mg si 40%O ?

Answer 1

$A_{Mg}$=24
$A_{O}$=16
$\frac{60}{24}$=2,5
$\frac{40}{16}$=2,5
$\frac{2,5}{2,5}$=1
$\frac{2,5}{2,5}$=1
=>ca formula este MgO