Ответ:
1.
w(Na)=46*100/142=32,4%
w(S)=32*100/142=22,5%
w(O)=64*100/142=45,1%
2. w(Br)=240*100/267=89,9%
Объяснение:
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Answers & Comments
Ответ:
1.
w(Na)=46*100/142=32,4%
w(S)=32*100/142=22,5%
w(O)=64*100/142=45,1%
2. w(Br)=240*100/267=89,9%
Объяснение: