
南一國中自然2下_ch1-1
Authored by 南一 自然
Science
8th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於物理變化與化學變化發生後,下列敘述何者正確?
二者原子總數皆發生改變
二者原子種類都不變
二者分子總數目都不變
二者分子種類皆發生改變
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列反應中,最適合以氣泡來觀察是否發生化學變化的為哪一反應?
碳酸鈉+氯化鈣
氫氧化鈣+二氧化碳
鹽酸+碳酸鈣
硫酸+氫氧化鈉
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(甲)原子種類;(乙)原子數目;(丙)質量總和;(丁)分子種類;(戊)分子數目;(己)原子排列方式。依道耳吞原子說,化學反應前後,上述不變的有哪些?
甲乙丙
丁己
丁戊己
戊己
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一已平衡的化學反應式為2甲+乙→丙+2丁,則反應前後,下列何者最可能改變?
分子的種類
原子的種類
原子的總數
原子的質量
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是化學反應?
冰塊熔化成水
雙氧水分解產生氧氣
大理石和稀鹽酸反應產生二氧化碳
酒精燃燒產生二氧化碳和水蒸氣
6.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
物質發生化學變化後,下列何者一定會改變?
原子的總個數
原子的種類
分子的總個數
分子的種類
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
詩詞乃是古人為我們留下的珍貴寶藏,充實我們的精神內涵,下列各選項的詩句中何者與化學變化無關?
春蠶到死絲方盡,蠟炬成灰涙始乾
爆竹聲中一歲除,春風送暖入屠蘇
何意百煉鋼,化為繞指柔
風吹柳花滿店香,吳姬壓酒勸客嘗
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