
南一國中自然2下_ch1-2
Authored by 南一 自然
Science
8th Grade
Used 20+ times

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鋼絲絨生鏽質量變大,木炭燃燒後質量變小,關於此敘述,下列何者錯誤?
鋼絲絨與氧氣反應,所以質量變大
木炭燃燒產生CO2溢出,所以質量減小
此二反應都不遵守質量守恆定律
二者都是化學反應
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
假設6公克A物質與30公克B物質反應後僅剩下10公克的B物質,其反應式為3A+B→2C,則產生之C物質為多少公克?
19
26
36
48
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於化學變化發生的前後,下列敘述何者正確?
分子總數不變,所以總質量保持不變
分子的種類不同,所以總質量前後會改變
原子的種類和數目都不改變,所以總質量前後不變
原子種類可能不同,但前後總質量保持不變
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在甲、乙、丙三個相同的密閉容器中分別放入10、20、30克碳酸鈣,再分別加入30、20、10克20%的鹽酸,之後立刻關上蓋子。請問將三個容器內物質的重量關係為下列何者?
甲=乙=丙
甲>乙>丙
甲<乙<丙
甲=乙<丙
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關「質量守恆定律」的敘述,下列何者正確?
化學反應必須在密閉容器內進行,才能遵守質量守恆定律
化學反應若有氣體逸散使質量減少,仍遵守質量守恆定律
化學反應若物質氧化使質量增加,則不遵守質量守恆定律
化學反應後,原子的種類和數目改變並產生新物質
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以36公克的X和足量的Y恰可完全反應生成48公克的X2Y,且無剩餘的X,則下列何者也可完全反應生成X2Y,且無剩餘的X和Y?
8公克的X和4公克的Y
12公克的X和2公克的Y
54公克的X和18公克的Y
72公克的X和48公克的Y
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿妹取5克碳酸氫鈉粉末放置在蒸發皿上加熱,反應式如下:
NaHCO3 → Na2CO3 + CO2 + H2O(未平衡)
反應結束後,收集蒸發皿內的物質並秤取其重量。關於此化學變化的過程敘述,何者正確?
碳酸氫鈉受熱會產生氫氣
碳酸氫鈉會與空氣中的氧氣結合
蒸發皿內生成物總質量小於5克
此為放熱反應
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
15 questions
八下理化1-3
Quiz
•
8th Grade
15 questions
腕試しクイズ
Quiz
•
8th Grade - University
13 questions
8升9練習:110八上(第3冊)緒論~第5單元
Quiz
•
8th - 9th Grade
15 questions
环境保护
Quiz
•
6th - 8th Grade
10 questions
聖經班_day 4
Quiz
•
1st - 12th Grade
13 questions
四年级科学(单元7练习1:能)
Quiz
•
1st - 10th Grade
15 questions
三年级科学机械滑轮(B)
Quiz
•
1st - 12th Grade
15 questions
二年级科学 第八课 混合物
Quiz
•
8th Grade
Popular Resources on Wayground
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
54 questions
Analyzing Line Graphs & Tables
Quiz
•
4th Grade
22 questions
fractions
Quiz
•
3rd Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
15 questions
Equivalent Fractions
Quiz
•
4th Grade
Discover more resources for Science
20 questions
Cell Organelles and Functions
Quiz
•
6th - 8th Grade
33 questions
Grade 6 Quarter 3 PMA 5 Review
Quiz
•
6th - 8th Grade
10 questions
Exploring the Rock Cycle: Types and Formation
Interactive video
•
6th - 8th Grade
10 questions
Exploring the Layers of the Earth
Interactive video
•
6th - 10th Grade
14 questions
Biodiversity and Sustainability Quiz
Quiz
•
8th Grade
20 questions
Heredity Punnett square review
Quiz
•
8th Grade
23 questions
Newton's 3 Laws of Motion
Quiz
•
8th Grade
10 questions
Exploring the Rock Cycle
Interactive video
•
6th - 8th Grade