
B4C1習作_康
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氫氣與氧氣燃燒產生水的化學反應式為:2H₂ +O₂ →2H₂O,已知0.2公克的氫氣與1.6公克的氧氣完全反應後產生X公克的水,請推測X應為何?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知碳的原子量為12,請判斷下列敘述何者正確?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據道耳頓的原子說,請推論下列何者是正確的「氫氣與氧氣完全反應產生水」粒子模型圖?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知碳原子量為12,經過實驗測量發現碳原子與X原子的質量比為4:9,請推測X原子的原子量為何?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲烷(CH₄)與氧氣反應可生成二氧化碳及水蒸氣,其化學反應式為:CH₄+2O₂→CO₂+2H₂O,可知甲烷與氧氣反應的莫耳數比為?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用平衡的化學反應式表示:鈉(Na)和水(H₂O)反應,產生氫氧化鈉(NaOH)與氫氣(H₂)。下列何者為正確的平衡化學反應式?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用平衡的化學反應式表示:碳酸鈉(Na₂CO₃)和鹽酸(HCl)反應,產生氯化鈉(NaCl)、水(H₂O)與二氧化碳(CO₂)。下列何者為正確的平衡化學反應式?
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