HABA PENYESARAN

HABA PENYESARAN

9th - 12th Grade

5 Qs

quiz-placeholder

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HABA PENYESARAN

HABA PENYESARAN

Assessment

Quiz

Chemistry

9th - 12th Grade

Easy

Created by

hamdan pare

Used 3+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Besi yang manakah paling reaktif

Aluminium

zink

kuprum

ferum

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

CuSO4 boleh disesarkan oleh elemen berikut KECUALI?

Magnesium

argentum

zink

plumbum

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bahan tindak balas yang manakah menghasilkan haba penyesaran

asid hidroklorik + natrium hidroksida

etanol + oksigen

plumbum nitrat + potassium iodida

argentum nitrate + kuprum

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mengapakah tindak balas magnesium dan kuprum(ii) sulfat lebih tinggi daripada zn dan kuprum (ii) sulfat

magnesium lebih elektropositif daripada zink

mempunyai proton yang lebih tinggi

ikatan kimia lebih tinggi

Saiz magnesium lebih besar

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5 g Serbuk zink di masukkan ke dalam 100cm3 larutan plumbum (II)nitrat 0.5moldm-3 . Persamaan termokimia bagi tindak balas ini ditunjukkan di bawah.

Zn + Pb2+ → Zn2+ + Pb ∆H = -110kJmol-1

Hitung perubahan haba yang berlaku

[Muatan haba tentu larutan :4.2 Jg-1˚C-1 ]

2500 J

3000 J

5500 J

6500 J