sự điện phân . .

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kunlove_pun

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Chắc suất Đại học top - Giữ chỗ ngay!!

ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.

anh chị giải nhanh giùm e bài này được không ạ .
cho các dung dịch sau Kcl , Nacl , Cacl2 , NaSO4 , ZnSO4 , H2SO4 , KNO3 , AgNO3 ,NaOH ,
a) sau khi điện phân số dung dịch cho môi trường kiềm là bao nhiêu ( ghi rõ pt )
b)số dung dịch thực chất chỉ là điện phân H2O
 
T

the_god

cho các dung dịch sau Kcl , Nacl , Cacl2 , NaSO4 , ZnSO4 , H2SO4 , KNO3 , AgNO3 ,NaOH ,
a) sau khi điện phân số dung dịch cho môi trường kiềm là bao nhiêu ( ghi rõ pt )
b)số dung dịch thực chất chỉ là điện phân H2O
____________________________________________
câu b) NaSO4, KNO3
câu a)có 3 chất bạn tự cân bằng nhé:
KCl+H2O----------->KOH+H2+O2
CaCl2+H2O----------->Ca(OH)2+H2+O2
NaOH +H2O----------->NaOH+H2+O2
 
T

the_god

Bạn học thuộc các quy tắc điện phân , hiểu được bản chất của điện phân thì viết pt nhanh thôi! ==> sản phẩm dễ dàng
Chúc bạn học tốt nha!
 
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Khách

Response

Mình nhớ là dpdd NaCl có màng ngăn amiang thì dd sau đp có pH>7 nữa mà bạn
PTPƯ : 2NaCl + 2H2O --> Cl2 + H2 + 2NaOH
 
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carpinteyrokpr

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carpinteyromwm

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