Phản ứng của muối

Phản ứng của muối

12th Grade

46 Qs

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Phản ứng của muối

Phản ứng của muối

Assessment

Quiz

Science

12th Grade

Easy

Created by

Khui Mink

Used 2+ times

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46 questions

Show all answers

1.

DRAG AND DROP QUESTION

1 min • 1 pt

​ (a)   + Na → ​ ​ (b)   + H2

NaHSO4
Na2SO4
H2SO4
NaNO3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phản ứng nào là phản ứng nhiệt phân đúng?

Cu(NO3)2 → Cu + 2NO2 + O2

NH4NO3 → N2 + 2H2 + 1/2 O2

2Al(OH)3 → Al2O3 + 3H2O

Na2CO3 → Na2O + CO2

Answer explanation

Các phương trình đúng:

2Cu(NO3)2 → 2CuO + 4NO2 + O2

NH4NO3 → N2O + 2H2O

Na2CO3 không bị nhiệt phân

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho mẫu kim loại X vào dung dịch NaOH, thấy có khí thoát ra. X là?

Al

Fe

Cu

Mg

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

2CO₂ + Ca(OH)₂ → ________

5.

DRAG AND DROP QUESTION

1 min • 1 pt

CO₂ + ​ (a)   → CaCO₃ + H₂O

Ca(OH)₂
2Ca(OH)₂
Ca(HCO)₃

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

______ + CO₂ + H₂O → 2NaHCO₃

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

CO₂ + NaOH → ______

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