KUIZ STEM 2

KUIZ STEM 2

8th Grade

5 Qs

quiz-placeholder

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KUIZ STEM 2

KUIZ STEM 2

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Medium

Created by

NORA ABDULLAH

Used 1+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Karbon-12 dan karbon-14 merupakan isotop. Apakah persamaan yang dimiliki oleh kedua-dua atom ini?

I Bilangan proton

II Bilangan neutron

III Sifat fizik

IV Sifat kimia

I dan II

I dan IV

II dan III

III dan IV

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Jisim tiga atom unsur Y adalah sama dengan jisim empat atom karbon. Y bukan simbol sebenar unsur itu. Apakah jisim atom relatifnya. [Jisim atom relatif: C = 12]

12

16

36

48

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Antara yang berikut, unsur yang manakah terletak dalam Kumpulan 18 dalam Jadual Berkala Unsur?

Helium dan kripton

Argon dan platinum

Mangan dan indium

Radon dan rubidium

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah kala untuk unsur dengan nombor proton 20?

5

4

3

2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Hitung nilai pH bagi larutan Q yang mempunyai ion hidroksida, OH- 0.5 mol dm-3.

pH = 0.3

pH = 3.0

pH = 12.4

pH = 13.7

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