Объяснение:
ω(Ca)=40/100×100%=40%
ω(C)=12/100×100%=12%
ω(O)=16×3/100×100%=48%
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Объяснение:
ω(Ca)=40/100×100%=40%
ω(C)=12/100×100%=12%
ω(O)=16×3/100×100%=48%