Bab 3 konsep mol

Bab 3 konsep mol

4th Grade

21 Qs

quiz-placeholder

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Bab 3 konsep mol

Bab 3 konsep mol

Assessment

Quiz

Chemistry

4th Grade

Practice Problem

Hard

Created by

Pals Gamps

Used 7+ times

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21 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Jisim atom relatif ialah jisim bagi satu _____ sesuatu unsur dibandingkan dengan 1/12 jisim atom karbon-12

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Mengapakah karbon-12 dipilih sebagai atom piawai penentuan JAR?

Kerana karbon-12 sukar dijumpai

Karbon-12 ialah isotop karbon yang mempunyai kelimpahn 99%

Karbon-12 bersifat pepejal dan mudah dikendalikan

Karbon-12 berbentuk gas dalam keadaan bilik

JAR bagi karbon-12 adalah tepat 12.0

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Berapa banyak atom magnesium yang diperlukan supaya mempunyai jisim yang sama dengan 2 atom argentum ?

[ JAR : Mg=24, Ag=108]

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Satu atom Kalsium adalah 2 kali ganda daripada satu atom Neon.

Berapakah jisim atom relatif bagi Kalsium?

[ JAR : Ne=20]

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Berapakah atom oksigen supaya sama dengan 2 atom kuprum?

[ JAR : O=16, Cu=64]

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Berikut merupakan contoh bagi sebatian ion kecuali :

Natrium klorida

Magnesium sulfat terhidrat

Ammonia

Zink klorida

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Berapakah jisim formula relatif bagi sebatian Magnesium sulfat terhidrat, MgSO4.7H2O ?

[ JAR : Mg=24, S=32, O=16, H=1]

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