
南一國中自然2下_ch1-4

Quiz
•
Science
•
8th Grade
•
Hard
南一 自然
Used 11+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
化學反應式中,各項係數是表示:(甲)原子不滅;(乙)分子不滅;(丙)質量不滅;(丁)莫耳數不滅。則下列何者正確?
甲丁
乙丙
甲丙
甲乙丙丁
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
反應式:A+3 B → 2 C+3 D,其中A的分子量為35,B的分子量等於20,C的分子量等於25,則D的分子量等於多少?
15
20
25
40
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
取6克的木炭燃燒生成二氧化碳22克,則6克木炭完全燃燒須和純氧多少克化合?
6
18
16
24
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A、B、C表示三種不同之物質,其分子量分別為10、18、24,若A和B反應生成C,則下列何者可能為其平衡化學反應式?
A+B→C
A+2B→C
3A+B→2C
2A+B→2C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知X、Y、Z三種物質的反應式為2 X+Y→2 Z,若Y和Z的分子量分別為32和40,則X物質的之分子量為何?
8
24
36
72
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲、乙、丙三種物質分子量分別為 2、28、17,若甲和乙反應會生成丙,下列何者可能為其平衡反應式?
甲+乙→丙
甲+乙→2丙
3甲+乙→2丙
3甲+2乙→2丙
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三種不同的物質A、B、C,三者的反應式為3 A+2 B → 2 C,A、B的分子量分別為15、22,則C的分子量可能為下列何者?
37
44.5
74
89
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