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asas pengiraan formula kimia

Authored by NUR MAZLAN

Chemistry

6th - 8th Grade

Used 48+ times

asas pengiraan formula kimia
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Apakah maksud satu mol bagi suatu bahan?

What is the meaning of one mole of a substance

Bilangan zarah bagi suatu bahan.

The number of particle of any substance

Jisim satu mol suatu bahan mengandungi 6.02x1023 zarah.

One mole of substance contains 6.02x1023 particles.

Jisim satu mol suatu bahan dipanggil jisim atom relatif.

The mass of one mole of any substance is call relative atomic mass.

Jumlah suatu bahan yang mengandungi bilangan zarah sama dengan bilangan atom dalam 12g karbon-12.

The amount of substance that contains as many particles as the number of atoms in exactly12 g of carbon-12.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nukleus atom mempunyai…

The nucleus of an atom contains…

elektron sahaja

electrons only

neutron sahaja

neutrons only

kedua-dua proton dan neutron

both protons and neutrons

kedua-dua proton dan elektron

both protons and electrons

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jadual di bawah menunjukkan maklumat bagi dua jenis zarah.

Table below shows the information for two types of particles.


Zarah -----------Nombor proton ----------Susunan electron

Particle -----------Proton number ------------Electron arrangement


----J ----------------------11 ------------------------------ 2.8


----K----------------------- 20 -----------------------------2.8.8


Berdasarkan maklumat dalam jadual, zarah J dan zarah K ialah

Based on the information in the table, particle J and particle K are

noble gases

gas adi

ion negative

negative ions

ion-ion positif

positive ions

isotop unsur yang sama

isotopes of the same element

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Yang manakah bahan mengalami pemejalwapan apabila dipanaskan?

Which of the following substances undergoes sublimation when it is heated?

Sulfur

Sulphur

Fosforus

Phosphorous

Natrium klorida.

Sodium chloride.

Ammonium klorida.

Ammonium chloride.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Pemejalwapan

Sublimation

Resapan

Diffusion

Penyejatan

Evaporation

Penghidratan

Hydration

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

17

34

2

28

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Antara bahan yang berikut, yang manakah mangandungi bilangan atom yang sama dengan satu

mol gas klorin?

Which of the substance below contains the same number of atoms as in one mole of chlorine

gas?

1 mol nitrogen dioksida

1 mol nitrogen dioxide

0.5 mol natrium

0.5 mol sodium

1 mol neon

2/3 mol karbon dioksida

2/3 mol carbon dioxide

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