伯源哥哥的鉛筆盒生鏽的可能原因是?

生鏽測驗501

Quiz
•
Chemistry
•
5th Grade
•
Easy
王嘉賢 王嘉賢
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
接觸人體的油脂
接觸太陽的紫外光
接觸空氣中的懸浮微粒
接觸空氣中的水分
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一種環境最會加速生鏽?
空氣中的水分含有鹽分的海邊
乾燥的沙漠地帶
風速強勁的山腳下
寒冷的高山上
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
浸泡在哪一種液體會讓鋼絲絨球最快生鏽?
清水
沙拉油
醋
糖水
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
鋼絲絨球浸泡在醋、鹽水和雙氧水三種不同的液體,生鏽的速度由快到慢是?
醋→鹽水→雙氧水
鹽水→醋→雙氧水
雙氧水→醋→鹽水
三個都一樣快
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪個組合是生鏽的重要條件?
陽光和水分
氧氣和高溫
水分和氧氣
低溫和陽光
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一種水溶液除鏽效果最好?
可樂
醋
鹽酸
養樂多
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
加入何種水溶液可以透過酸鹼中和讓接觸酸性的金屬在除鏽後防止繼續生鏽?
小蘇打水
鹽水
檸檬酸
糖水
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