Ответ:
М (K2NO3)= (39*2)+14+(16*3)=140
ω (К) =7800/140=56%
ω (N)=1400/140=10%
ω (O)= 100%-(56%+10%)=34%
Объяснение:
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Ответ:
М (K2NO3)= (39*2)+14+(16*3)=140
ω (К) =7800/140=56%
ω (N)=1400/140=10%
ω (O)= 100%-(56%+10%)=34%
Объяснение: