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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U”) ANSWERS

ANSWER SCHEME
PAPER 1

Topic Answer Explanation
NO BAB
Topik Jawapan Penerangan
Mercurry cell is not rechargeable.
Sel merkuri tidak boleh dicas semula

A
1 1 Electrochemistry

The Structure of Gas X is Helium, Helium is atom
2 1
the Atom A Gas X ialah Helium, Helium ialah atom
3
Volume X 2 = 4.8/2 X 24 = 57.6 dm
Chemical Volume Y 2 = 16.8/28 X 24 = 14.4 dm 3
3
3 3 Formulae and D Volume Z 2 = 12.8/32 X 24 = 9.6 dm
Equations Ascending order
Z 2, Y 2, X 2
Definition of RAM is the average mass of atom
Chemical 1
4 3 Formulae and C compared to / 12 of the mass of a carbon-12 atom.
Definisi JAR ialah purata jisim satu atom ialah 64
Equations 1
berbanding / 12 jisim satu atom karbon-12

M O
Mass / jisim 1.04 0.48
Bil mol/ number 1.04/52 0.48/16
Chemical C
5 3 Formulae and of mole =0.02 =0.03
0.02/0.02
0.03/0.02
Ratio/ nisbah
Equations
=1 =1.5
Simplest ratio/ 2 3
nisbah teringkas
Empirical formula/ formula empirik = M 2O 3
The reading value of concentration and temperature
C is higher
6 10 Rate of reaaction
Nilai bacaan bagi kepekatan dan suhu adalah lebih
tinggi

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