Răspuns :

Mihaiimbriscaid

Răspuns:

H2O

R.AT. H:O=2:1

R.M H:O=2:16=1:8

compozitie procentuala

MH2O=2×AH+AO=2×1+16=18

18gH2O............2gH.......16gO

100gH2O.........xgH.........ygO

x=100×2/18=11,11% H

y=100×16/18= 88,89% O

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