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AlinkaMalinka120
@AlinkaMalinka120
August 2021
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Вычислите количество вещества оксида кальция , если в реакцию вступило 30 грамм кальция ) Прошу помогите )
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lerapichugina
2Ca+O2=2Cao
M(Ca)=40
m(Ca)=30/40=0.75
0.75/2=x/2
x=0.75
M(CaO)=56
56*0.75=42
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Answers & Comments
M(Ca)=40
m(Ca)=30/40=0.75
0.75/2=x/2
x=0.75
M(CaO)=56
56*0.75=42