Ответ:
H2SO4
Mr=98
H= 2*1/98=0.02
S= 1*32/98=0.326
O=4*16/98=0.653
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Ответ:
H2SO4
Mr=98
H= 2*1/98=0.02
S= 1*32/98=0.326
O=4*16/98=0.653