
Thí nghiệm tương tác nhận biết ion ammonium
Interactive Video
•
English
•
11th Grade
•
Easy
TRẦN KIỀU
Used 2+ times
FREE Resource
3 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Theo em, màu của quỳ tím ẩm sẽ biến đổi như thế nào khi để trên miệng ống nghiệm?
Không đổi màu
Hóa đỏ
Hóa xanh
Bị mất màu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Theo em, màu của giấy chỉ thị phenolphtalein sẽ biến đổi như thế nào khi để trên miệng ống nghiệm?
Hoá xanh
Hóa hồng
Mất màu
Không đổi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng hóa học nào đã xảy ra trong thí nghiệm?
NH4Cl + NaOH -> NH3+ NaCl+ H2O
NH4Cl + NaOH -> NH4OH + NaCl
NH4Cl + NaOH -> NH4+ NaCl+ H2O
NH4Cl + NaOH -> NH3+ Na+ + H2O + Cl-
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