
化合价化学式书写

Quiz
•
Science
•
6th Grade
•
Medium
Tong Sun
Used 2+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氧元素的常见化合价是多少?
0
-2
+2
+1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氢元素的常见化合价是多少?
0
-2
+2
+1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
镁元素的常见化合价是多少?
0
-2
+2
+1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
写出氧化铜的化学式
Cu
CuO
Cu2O
CuO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
写出氯化钠的化学式的化学式
Na2Cl2
NaCl
Na+Cl-
nacl
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
写出氧化铁的化学式
Fe
FeO
Fe2O3
Fe3O4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
写出氢氧化钠的化学式
NaOH
NaO
Na2O3
Na2OH
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知铝和氧原子的相对原子质量分别是27和16,请问氧化铝的相对分子质量是多少?
43
102
86
94
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