Oxide, base, muối -HSG

Oxide, base, muối -HSG

8th Grade

59 Qs

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Oxide, base, muối -HSG

Oxide, base, muối -HSG

Assessment

Quiz

Chemistry

8th Grade

Easy

Created by

Tạ Xuân

Used 3+ times

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59 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Chất nào sau đây là base?

KOH.

HCl.

NaCl.

H2SO4.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Trong số các base sau đây, base nào là base tan trong nước?

Fe(OH)2

KOH

Cu(OH)2

Fe(OH)3

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Calcium hydroxide được sử dụng rộng rãi trong nhiều ngành công nghiệp. Công thức của calcium hydroxide?

CaO.

Ca(OH)2.

CaSO4.

CaCO3.

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Dung dịch chất nào sau đây làm quỳ tím hóa xanh?

NaCl.

Na2SO4.

NaOH

HCl.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nhóm các dung dịch có pH < 7

HCl, NaOH.

Ba(OH)2, H2SO4

NaCl, HCl.

H2SO4, HNO3.

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Sodium hydroxide (hay xút ăn da) là chất rắn, không màu, dễ nóng chảy, hút ẩm mạnh, tan nhiều trong nước và tỏa ra một lượng nhiệt lớn. Công thức của sodium hydroxide

Ca(OH)2.

NaOH.

NaHCO3.

Na2CO3.

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Dung dịch nào sau đây có pH < 7

NaOH.

Ba(OH)2

NaCl.

H2SO4.

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