
南一國中自然2下_ch1-4
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
南一 自然
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
碳酸鈣和鹽酸作用產生氯化鈣、二氧化碳和水,若取200公克碳酸鈣與鹽酸完全反應,則最少需消耗鹽酸多少克?(原子量:Ca=40、C=12、Cl=35.5、O=16、H=1)
73克
146克
35克
100克
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若有氧呼吸作用的反應方程式為: 1C6H12O6+6O2→6CO2+6H2O,則吃進360克的葡萄糖可產生多少公克的水分子?
18克
36克
108克
216克
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氫分子與氮分子反應將產生氨分子,其反應式為: 3H2+N2→2NH3,原子量:H=1,N=14,今取18公克的氫分子與56公克的氮分子混合反應,試問最多可以產生多少莫耳的氨分子?
2
4
6
9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
碳不完全燃燒,其反應式為2C+O2→2CO,今取24公克的碳與16公克的氧完全反應後,最多會產生多少公克的一氧化碳?
56公克
44公克
40公克
28公克
5.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
已知一化學反應式為 2甲+乙→2丙,則下列選項對三者分子量比的推測,何者最正確?
1:2:4
1:1:4
1:16:9
1:8:9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一化學反應式為5A+2B─→3C,A、B、C皆為化合物,試問下列何者可能是A、B、C的分子量?
5、10、15
10、20、40
15、25、35
1、2、5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氫和氧反應生成水的化學反應式是2H2+O2→2H2O,則下列敘述何者錯誤?(H=1,O=16)
1莫耳的氫氣可和0.5莫耳的氧氣完全反應
2莫耳的氫氣和足量的氧氣反應可得2莫耳的水
4公克的氫氣和足量的氧氣反應時,可得1莫耳的水
2公克的氫氣若要完全反應,至少需要16公克的氧氣
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