若2X+Y→2Z,若有30公克的X與15公克的Y完全反應,則可產生多少公克的Z?
質量守恆003_練習題3

Quiz
•
Science
•
7th - 9th Grade
•
Medium
鄭之偉 鄭之偉
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
30
45
50
60
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將25公克的甲物質加熱完全分解成10公克的乙物質和丙氣體,若將丙氣體與某物質X完全反應後生成19公克丁產物,則X應為多少公克?
4
5
6
7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲、乙、丙、,丁分別代表四種不同的純物質,取10克甲和8克乙進行反應,其反應式為:2甲+乙→丙+丁。反應後乙完全用完,甲剩下1克,生成6克的丙,則此化學反應生成丁多少克?
10
11
13
20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知3g的甲化合物恰可與3g的乙化合物完全反應,生成6g的丙化合物。若取5g的甲化合物和10g的乙化合物進行反應,則下列敘述何者正確?
反應時,10g的乙化合物剛好用完
反應完成後,生成10g的丙化合物
反應完成後,還剩下2g的甲化合物
反應完成後,物質的總質量為10g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
蠟燭在空氣中燃燒後,會產生水及二氧化碳。若蠟燭於空氣中燃燒後減輕a公克、用去b公克的氧氣、生成x公克的水及y公克的二氧化碳,則下列關係何者正確?
a=b
x=y
a+b=x+y
a=b+x+y
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一反應的反應式及反應前後的數據表格,則表格中X、Y的數值分別為下列何者?(提示:戊是什麼角色?)
X=10,Y=0
X=9,Y=1
X=16,Y=0
X=39,Y=1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
圖為鎂帶燃燒產生氧化鎂質量的關係圖。若取12公克的鎂帶與6公克的氧燃燒,最多可以產生幾公克的氧化鎂?
20
15
10
5
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