
KIỂM TRA CHƯƠNG 2
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Acid là những chất làm cho quỳ tím chuyển sang màu nào trong số các màu sau đây?
Xanh
Đỏ
Tím
Vàng
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Acid có trong dạ dày của người và động vật giúp tiêu hóa thức ăn là
Sulfuric acid
Acid stearic
Acetic acid
Hydrochloric acid
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Điền vào chỗ trống: "Acid là những ... trong phân tử có nguyên tử ... liên kết với gốc acid. Khi tan trong nước, acid tạo ra ion ..."
Hợp chất, hydroxide, H+
Đơn chất, hydrogen, OH−
Đơn chất, hydroxide, OH−
Hợp chất, hydrogen, H+
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Base là những chất làm cho quỳ tím chuyển sang màu nào trong số các màu sau đây?
Đỏ
Xanh
Tím
Vàng
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nếu pH>7 thì dung dịch có môi trường:
Muối
Base
Acid
Trung tính
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Để nhận biết dd KOH và dd Ba(OH)2 ta dùng thuốc thử là:
Phenolphtalein
Quỳ tím
dd H2SO4
dd HCl
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Oxide là hợp chất tạo nên từ mấy nguyên tố?
1
2
3
4
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