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compozitia procrntuala pt dioxidul de sulf

Răspuns :

dioxid sulf=SO2
M=32+2×16=32+32=
60g
60 g.....32 S.....32 O
100 g.....x%......z%
x=32×100/60=160/3=
53,33% S
z=32×100/60=53,33