
Jisim atom relatif dan jisim molekul relatif

Quiz
•
Chemistry
•
8th Grade
•
Hard
THO Moe
Used 64+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa karbon-12 telah dipilih sebagai rujukan piawai untuk jisim atom relatif dan jisim molekul relatif?
Karbon mempunyai tiga isotop
Karbon merupakan unsur bukan logam
Karbon adalah pepejal dan lebih senang dikendalikan
Karbon terletak dalam Kumpulan 14 dalam Jadual Berkala Unsur
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Lapan unsur atom X mempunyai jisim yang sama dengan dua atom Telurium, Te. Berapakah jisim atom relatif X? [Jisim atom relatif: Te= 128]
8
16
32
64
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Purata jisim satu atom magnesium adalah 24 kali lebih besar daripada 1/12 jisim satu atom karbon-12. Apakah jisim atom relatif bagi magnesium?
2
12
24
48
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Formula kimia bagi kalium heksasianoferat(III) ialah K3Fe(CN)6. Berapakah jisim formula relatifnya? [Jisim atom relatif: C=12, N=14, K=39, Fe=56]
121
199
251
329
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jisim tiga atom bagi unsur X adalah sama dengan jisim empat atom karbon. X bukan simbol sebenar unsur itu. Apakah jisim atom relatif bagi unsur X? [Jisim atom relatif: C=12]
48
36
16
12
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jisim molekul relatif bagi M2(SO4)3 ialah 342. Berapakah jisim atom relatif bagi unsur M? [Jisim atom relatif: O=16, S=32]
27
54
118
123
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Satu sebatian berfomula X2CO3 mempunyai jisim formula relatif 138. Berapakah jisim atom relatif bagi X? [Jisim atom relatif: C =12, O=16]
39
69
78
110
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