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Bab 4: Kadar Tindak Balas

Authored by TAY Moe

Science

3rd Grade

Used 1+ times

Bab 4: Kadar Tindak Balas
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Antara berikut, yang manakah tindak balas cepat?

Pengaratan sudu besi

Pembakaran gas butana

Pertumbuhan kulat pada roti

Percambahan biji benih

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Antara berikut, yang manakah contoh tindak balas perlahan?

Pembakaran bunga api

Tindak balas natrium dengan air

Fotosintesis oleh tumbuhan hijau

Pembakaran kertas

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah yang ditakrifkan dengan kadar tindak balas?

Penghasilan gas hidrogen semasa tindak balas kimia.

Kuantiti hasil tindak balas bertambah dan kuantiti bahan tindak balas berkurang.

Perubahan kuantiti bahan tindak balas atau hasil tindak balas per unit masa.

Perubahan masa semasa tindak balas kimia.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Apakah kadar tindak balas purata dalam 2 minit pertama?

0.25 cm3 s–1

0.50 cm3 s–1

1.50 cm3 s–1

2.00 cm3 s–1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika jisim satu tablet ialah 2 g dan masa yang diambil untuk tablet melarut ialah 40 saat, hitung kadar tindak balas yang berlaku.

20 g s–1

0.5 g s–1

0.05 g s–1

0.02 g s–1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

0.3 g ketulan zink bertindak balas dengan asid hidroklorik cair berlebihan sehingga lengkap dalam masa 40 saat. Hitung kadar tindak balas bagi tindak balas ini.

0.0075 g s–1

12.0 g s–1

40.3 g s–1

133.3 g s–1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Berapakah kadar tindak balas yang berlaku?

0.02 g s–1

0.05 g s–1

2.00 g s–1

40.0 g s–1

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