國中自然2下4-2
Quiz
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Education
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6th - 8th Grade
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Practice Problem
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Medium
李康甲 李康甲
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關化學反應在達到平衡前的敘述,下列何者正確?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關平衡狀態的敘述,何者正確?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某一可逆反應為A+3B C+2D,其中B為黃色氣體,D為棕色氣體,A與C為黑色固體,則下列敘述何者錯誤?
此反應必須在密閉系統才可達成平衡
當黑色固體的量在兩定值之間作變化時,表示反應已達平衡
反應達平衡時,增加反應物濃度可破壞平衡狀態
當系統中氣體顏色不再改變時,可知反應已達平衡狀態
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
取一個廣口瓶,裡面裝半滿的水後密封靜置一個禮拜,可以發現裡面的水量有何改變?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
當一個化學反應達到反應平衡時,表示其正反應與逆反應之何者必相等?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
熱水能溶解較多的食鹽,所以當含有結晶鹽顆粒的飽和食鹽水在達到溶解平衡時略加溫,則會發生下列哪一個情形?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
氮氣與氫氣在高溫、高壓下製氨的化學反應為一可逆反應,其平衡反應式如下:(atm為壓力的單位)_x000B__x000B_若改變反應條件時,下列何者不會使反應式的平衡發生改變?
增加氮氣與氫氣的濃度
增加Fe的量
升高溫度
增加氨氣濃度
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