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Avem substanta H2SO4(sulfat de hidrogen 2)
Aflati % H =?
% S=?
% O =?

Răspuns :

Veronica0
e ACID SULFURIC!!!!
M H2S04=2+32+64=98
98G.............2gH.............32gS.............64gS
100g,,,,,,,,,,,,,X.................Y......................Z
X=100*2/98=...%H
Y=100*32/98=....%S
Z=100*64/98=...%O

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