Question

Дано:
Zn(OH)2
_______/
W(Zn)-?
W(O)-?
W(H)-?​

Answer 1

Ответ:

Решение:

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%