Zn(OH)2=65(16+1)×2=99г
W(Zn)=65×100%÷99=65,65%
W(O)=32×100%÷99=32,32%
W(H)=2×100%÷99=2,020%
Проверка:65,65%+32,32%+2,020%=99,99%
Zn(OH)2=65(16+1)×2=99г
W(Zn)=65×100%÷99=65,65%
W(O)=32×100%÷99=32,32%
W(H)=2×100%÷99=2,020%
Проверка:65,65%+32,32%+2,020%=99,99%