國中自然2下1-2_

國中自然2下1-2_

7th - 9th Grade

15 Qs

quiz-placeholder

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國中自然2下1-2_

國中自然2下1-2_

Assessment

Quiz

Fun

7th - 9th Grade

Practice Problem

Hard

Created by

Tang Da

Used 42+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1莫耳的氫氣(H2)與1莫耳的臭氧(O3),何者所含的原子數較多?

H2
O3
一樣多
不同氣體之間無法比較

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1公克的氫氣(H2)與1公克的臭氧(O3),何者所含的原子數較多?

H2
O3
一樣多
不同氣體之間無法比較

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

要取得0.05莫耳的個CaCO3分子,必須要秤取多少公克的CaCO3?(Ca=40)

5
10
50
3×1022

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

原子量並非原子的實際質量,而是各原子間質量的比較數值,既然是比較的結果,就必須有標準。試問現在使用比較原子量的標準是什麼?

碳-12的原子量為12
氫-1的原子量為1
氧-16的原子量為16
氮-14的原子量為14

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

取相同數目的甲原子與碳原子做質量的比較,結果質量比為4:3,試問甲的原子量應該為何?

9
12
16
24

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

試問各分子的分子量,下列何者錯誤?(N=14,Ca=40,Cu=63.5,S=32,Na=23)

NH3=17
NaOH=40
Na2CO3=83
CuSO4=159.5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

關於原子量,下列敘述何者錯誤?

以碳原子為標準的比較量
是比較量所以沒有單位
氫的原子量是1
原子量都是整數

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