铝的化合价
J2_第3章（下）化学式
8th Grade
•15 Qs
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J2_第3章（下）化学式
Quiz
•
Science
•
8th Grade
•
Medium
W.Y. Tan
Used 16+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
+ 2
+ 3
- 2
- 3
+ 1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氢的化合价
+2
+3
+1
-2
-1
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
硫酸根的化合价
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪个是硝酸根离子？
NO3-
SO42-
OH-
CO32-
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪一个是酸（acid）？
HCl
H2O
H3PO4
NaOH
Na2SO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪个是铜的化学式？
Ca
Cu
Co
C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
K+ 和OH-化合后的化学式是什么？
KOH
K(OH)2
K2OH
KOH2
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