
10ae3
Quiz
•
Fun
•
10th Grade
•
Medium
Thuc Minh
Used 5+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho quá trình Mg -> Mg+2 + 2e
Đây là quá trình
oxi hóa.
tự oxi hóa – khử
nhận proton
khử
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Phản ứng nào sau đây là phản ứng oxi hóa – khử ?
4NH3 + 3O2 -> 2N2 +6H2O
NaOH + HCl -> NaCl + H2O
Fe + 2HCl -> FeCl2 + H2
NH3 + HCl -> NH4Cl.
H2SO4 + BaCl2 -> BaSO4 + 2HCl.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Số oxi hóa của phosphorus trong K2HPO4
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Số oxi hóa của phosphorus trong PO43-
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Số oxi hóa của N trong N2O
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Số oxi hóa của Al trong AlCl3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FeO + HNO3 → Fe(NO3)3 + NO + H2O.
Tổng hệ số các chất sản phẩm trong phương trình hóa học của phản ứng này (số nguyên, tối giản) là:
3+1+5
3+10
3+10+3+1+5
5
Answer explanation
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