
Thang pH và Oxide
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Chemistry
8th Grade
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thang pH được dùng để:
chỉ biểu thị độ acid của dung dịch.
chỉ biểu thị độ base của dung dịch.
biểu thị độ acid, base của dung dịch.
biểu thị độ mặn của dung dịch.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thang pH thường dùng có các giá trị:
Từ 5 đến 8.
Từ 1 đến 14.
Từ 1 đến 13.
Từ 1 đến 7.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhúng giấy quỳ tím vào nước xà phòng thì quỳ tím sẽ chuyển thành màu gì?
Đỏ.
Xanh.
Vàng.
Hồng.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch nào sau đây có pH > 7?
NaOH.
H2SO4.
NaCl.
HNO3.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu pH = 7 thì dung dịch có môi trường:
Trung tính.
Base.
Acid.
Muối.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu pH < 7 thì dung dịch có môi trường:
Acid.
Base.
Muối.
Trung tính.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu pH > 7 thì dung dịch có môi trường:
Muối.
Base.
Acid.
Trung tính.
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