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物質的組成

Authored by Kai Xie

Chemistry

10th Grade

Used 1+ times

物質的組成
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

甲.鉀;乙.葡萄糖;丙.水銀;丁.黃金;戊.鑽石;己.黃銅;庚.白金;辛.硫酸;壬.氧化汞。上述所列的物質,屬於化合物者有哪些?

甲、乙、丙

乙、辛、壬

丁、戊、己、庚

丙、己、庚、辛

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列何者是能通過濾紙的液體所具有的特徵?

一定是純物質

一定是混合物

可能是純物質或混合物

必定屬於元素

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

鑽石、冰糖、水泥、碘酒、自來水、奶油、銀;以上物質中,屬於純物質的共有幾種?

5

4

3

2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

若將甲加熱,可得到乙、丙兩種物質,則甲為下列何者?

為化合物

為純物質

為混合物

可能是純物質或混合物

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

血紅素含有0.335%的Fe,它可能的最低分子量為何?(Fe = 56)

300

1700

3000

17000

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

反應aM + bN → cR,已知分子量M = 30,N = 60,欲生成100克R需N幾克?

200ba+2b\frac{200b}{a+2b}

100ba+4b\frac{100b}{a+4b}

200ac\frac{200a}{c}

200ba+3b\frac{200b}{a+3b}

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

甲乙二化合物之組成元素均為A與B,其重量百分組成分別為:甲含40% A和60% B,乙含25% A和75% B,則依倍比定律,甲、乙中B元素重量比為何?

1:2

2:3

1:3

3:4

4:5

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