Ответ:
M(H2SO4)=1*2+32+64=98
w(H2)=(2/98)*100%=2%
w(S)=(32/98)*100%=30%
w(O2)=100%-(2%+30%)=68%
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Ответ:
M(H2SO4)=1*2+32+64=98
w(H2)=(2/98)*100%=2%
w(S)=(32/98)*100%=30%
w(O2)=100%-(2%+30%)=68%