[Hóa 9] khi nito

N

ngocthao1995

khi nito co chay trong khong khi
phan biet CaO va Na2O
hoa tan 2 mau thu vao nuoc roi sau do dan khi CO2 qua 2 dung dich.Dung dich nao co hien tuong van duc thi ban dau la CaO.Con lai la Na2O.
 
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