PENGENALAN JISIM MOLAR

PENGENALAN JISIM MOLAR

Assessment

Assessment

Created by

Norlaili Moe

Chemistry, Science

7th Grade

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9 questions

Show answers

1.

Multiple Choice

30 sec

1 pt

Jisim natrium adalah 23 kali lebih besar daripada 1/12 karbon-12. Apakah jisim atom relatif bagi natrium?

A. 276

B. 23

C. 12

D. 1

2.

Multiple Choice

30 sec

1 pt

Jika jisim unsur A adalah 2 kali lebih besar daripada jisim karbon, maka jisim atom relatif bagi unsur itu ialah __________.

(Jisim atom relatif karbon = 12)

A. 12

B. 24

C. 288

D. 36

3.

Multiple Choice

30 sec

1 pt

Cari jisim molekul relatif bagi karbon dioksida.

[ JAR: C = 12; O = 16 ]

A. 28

B. 30

C. 44

D. 40

4.

Multiple Choice

30 sec

1 pt

Jisim atom relatif adalah berdasarkan kepada skala

Karbon-12

Karbon-13

Karbon-15

Karbon-10

5.

Multiple Choice

30 sec

1 pt

Pengiraan jisim molekul relatif?

Membahagikan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut

Menolakkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut

Menambahkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut

Mendarabkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut

6.

Multiple Choice

30 sec

1 pt

Hitungkan jisim molekul relatif bagi gas metana (CH4).

(Jisim atom relatif H: 1, C:12)

48

8

5

16

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