Các dung dịch: NH 3 , FeCl 3 , Na 2 S lần lượt làm quỳ tím hóa màu:
A.
xanh – đỏ – đỏ<...
Chemistry, 18.10.2021 21:10 deshundradenton4805
Các dung dịch: NH 3 , FeCl 3 , Na 2 S lần lượt làm quỳ tím hóa màu:
A.
xanh – đỏ – đỏ
B.
xanh – đỏ – xanh
C.
xanh – xanh – đỏ
D.
đỏ – xanh – đỏ
Answers: 1
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