國中自然2下ch1-1常見的化學反應

Flashcard
•
Chemistry
•
8th Grade
•
Hard
明宗 李
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8 questions
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1.
FLASHCARD QUESTION
Front
原子量並非原子的實際質量,而是原子質量的比較數值,請問目前以下列何者當作原子量的比較標準?
- 氫-1的原子量為1
- 氦-4的原子量為4
- 碳-12的原子量為12
- 氧-16的原子量為16
Back
碳-12的原子量為12
2.
FLASHCARD QUESTION
Front
化學反應與物理反應的差異為反應中是否產生何種新的粒子?
Back
分子
3.
FLASHCARD QUESTION
Front
物理變化發生前後,下列敘述何者正確?
Back
原子數目與分子數目都沒變
4.
FLASHCARD QUESTION
Front
鋼絲絨生鏽質量變大,這是因為鋼絲絨生鏽時怎麼了?
Back
與氧氣和水氣化合
5.
FLASHCARD QUESTION
Front
在10公升密閉容器內,放著一塊10立方公分的乾冰,加熱使它由固態變成氣態。此乾冰在狀態變化過程中,保持不變的物理量為下列何者? 體積, 比熱, 密度, 分子數
Back
分子數
6.
FLASHCARD QUESTION
Front
化學反應中反應物與生成物之間,可能會改變的是下列何者?
Back
原子間結合方式
7.
FLASHCARD QUESTION
Front
下列哪一個現象,不是因為化學變化? 生米煮成熟飯, 生雞蛋煮成了水煮蛋, 自來水煮沸成開水, 國慶日的絢爛煙火
Back
自來水煮沸成開水
8.
FLASHCARD QUESTION
Front
下列在物體體積變化的過程中,何者牽涉到化學變化?
Back
將小蘇打混合麵糰,加熱膨脹成饅頭
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