

B4理化5-3
Presentation
•
Fun
•
7th Grade
•
Practice Problem
•
Hard
貫騰紀 貫騰紀
FREE Resource
5 Slides • 1 Question
1
1
.
.
2
3
課本P.134
2
皂化反應
5.實驗流程:
→
→
→
.
6.乙步驟燒杯內的液體是
.
甲
乙
丙
丁
3.
4.
1.
+
5.
課本P.135
3
1.
是油和鹼性物質 共煮而成
2.
的原料是石油
甲
乙
課本P.135
4
優養化
3.水質
化:因清潔劑中含有
鹽,流入河
流中會造成藻類大量繁殖,而藻類死亡後,細菌
便開始分解藻類,大量消耗溶解在水中的
,造
成其他水生動物、植物無法生存。
5
Multiple Choice
請選出正確的答案
A
B
C
D
6
3.若水中有
鎂
、
鈣
離子,則稱為硬水,肥
皂在硬水中去汙力會較差,
但清潔劑去汙效果不受硬水影響。
硬水新聞
硬水
1
.
.
2
3
課本P.134
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