
2021S3第三段化學考前復習
Quiz
•
Chemistry
•
3rd Grade
•
Practice Problem
•
Easy
WW Kuan
Used 10+ times
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32 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
同一元素的同位素之間因為具有相同的質子數,因此具有相同的化學性質。
True
False
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
25℃ 時氯化鈉的溶解度是35.9g是指在25℃ 時,每100g水能溶解35.9g氯化鈉固體。
True
False
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
硼元素具有兩種同位素,分別是相對豐度為20%的10B和相對豐度為80%的11B,即自然界中每100個硼原子中,約有____個和______個。
20個11B
20個10B
80個11B
80個10B
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
硼元素具有兩種同位素,分別是相對豐度為20%的10B和相對豐度為80%的11B,硼的相對原子質量為_______(保留一位小數)。
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
通過稀釋方法配製30L標準濃度0.5倍的營養液,需用標準濃度2倍的營養液_______L和________L的水。
7.5L營養液
12L營養液
18L水
22.5L水
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列有關石灰石和白堊的陳述正確的是
兩者都含有碳酸鈣。
兩者在進行焰色試驗時都會產生金黃色的火焰。
兩者的主要化學成分跟大理石的相同。
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪個過程不會有二氧化碳生成?
在石灰石中加入稀氫氯酸
把生石灰加到水中
在白堊中加入稀硝酸
強烈加熱大理石
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