長今在廚房中作家事,清洗油膩瓦斯爐,她需加入何種物質幫忙她早點完成?
國中自然2下ch3-2酸和鹼

Quiz
•
Chemistry
•
8th Grade
•
Medium
翰林出版國中自然 翰林出版國中自然
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
油脂
酸性溶液
中性鹽溶液
鹼性溶液
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列家庭食物或日常用品中,何者屬於酸性物質?
橘子汁
漂白水
蘇打錠
氨水
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者不是鹼性溶液的共同性質?
使石蕊試紙由紅變藍
可溶解脂肪或油
與碳酸鈉反應可產生二氧化碳氣體
摸起來具有滑膩感
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在稀釋濃硫酸的過程中會出現下列何種現象?
產生沉澱
產生氣體
放出熱量
吸收熱量
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列敘述何者正確?
氨水可清洗金屬表面
醋酸可溶解油脂
硫酸可與全部的金屬反應
硝酸照光會分解出有毒氣體
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列各離子中,哪一種代表酸性?
SO42-
H+
NO3-
CH3COO-
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將醋酸與小蘇打粉混合所產生的氣體,可使澄清石灰水產生白色的沉澱,則可以推斷該氣體為下列何者?
氫氣
二氧化碳
一氧化氮
氧氣
8.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一項不屬於酸的特性?
在水中會解離出氫離子
水溶液可以導電
是電解質
可使石蕊試紙呈現藍色
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