KHTN 8 - Ôn thi CK2

KHTN 8 - Ôn thi CK2

8th Grade

13 Qs

quiz-placeholder

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KHTN 8 - Ôn thi CK2

KHTN 8 - Ôn thi CK2

Assessment

Quiz

Business

8th Grade

Easy

Created by

Luna Jan

Used 2+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acid là phân tử khi tan trong nước phân li ra ion

OH-

H+

Ca2+

Cl-

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch base làm phenolphthalein không màu chuyển màu

xanh

hồng

trắng

vàng

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chất nào là acid

Ca(OH)2   

Mg(OH)2

NaCl

H2SO4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Giấm ăn có chứa acetic acid với nồng độ

7%-10%  

10%-15% 

6%-10% 

2%-5%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch base làm quỳ tím chuyển sang màu

xanh

hồng

trắng

vàng

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chất nào là base

KOH 

HCl    

NaCl 

K2SO4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dung dịch làm quỳ tím hóa xanh

   

KCl 

NaNO3

NaOH 

HCl

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