đề cương ôn tập hoá học lớp 8 giữa kì 2
Quiz
•
Chemistry
•
8th Grade
•
Easy
le vietbach
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cho các chất có công thức hoá học sau CH3COOH; H2O; HNO3; KHCO3; H2S; HCL
3
4
5
6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
acid hydro sulfide có công thức là
h2s
hcl
h2so3
h2so4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
acid lm cho quỳ tím chuyển sang màu gì
xanh
đỏ
nâu
k đổi màu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
acid H2SO4 loãng tác dụng với FE tạo thành sản phẩm
FE2(SO4)3 và h2
FE2SO4 và h2
FE2(SO4)3 và SO2
FESO4 và SO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kim loại nào sau đây không tan đc trong dung dịch HCL
AL
AG
ZN
Mg
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
chất nào sau đây là base
Na2O
H2SO4
NAOH
NANO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tên gọi của các base : NAOH; BA(OH)2; FE(OH)2 lần lượt là
sodium hydroxide; barium hydroxide; iron hydroxide
postassium hydroxide; barium hydroxide; iron hydroxide
sodium hydroxide; barium hydroxide; iron(II) hydroxide
sodium hydroxide; barium hydroxide; iron(III) hydroxide
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