SPM CHEMISTRY 2019 4541/2 Q1

Question

1. Diagram 1 shows the electron arrangement of compounds CO2 and MgO.
Rajah 1 menunjukkan susunan elektron bagi sebatian CO2 dan sebatian MgO.
(a)State the type of bond in compound:
Nyatakan jenis ikatan dalam sebatian:
(i)CO2 :
(ii)MgO:
(b)What is the electron arrangement of oxygen atom ?
Apakah susunan elektron bagi atom oksigen ?
(c)During the formation of CO2 or MgO , only valence electrons are involved in chemical reaction .
Semasa pembentukan CO2 atau MgO , hanya elektron valens yang terlibat dalam tindak balas kimia .
(i)What is the meaning of valence electron ?
Apakah yang dimaksudkan dengan elektron valens ?
(ii)State the number of valence electrons for magnesium atom.
Nyatakan bilangan elektron valens bagi atom magnesium .
(iii)What is the purpose of the formation of chemical bond ?
Apakah tujuan poembentukan ikatan kimia ?
(d)Magneisum reacts with chlorine to form compound X .The electron arrangement of chlorine atom is 2.8.7.
Magnesium bertindak balas dengan klorin untuk membentuk sebatian X .Susunan elektron bagi atom klorin ialah 2.8.7.
(i)Write the formula of compound X.
Tulis formula bagi sebatian X .
(ii)State the type of particles for compound X.
Nyatakan jenis zarah bagi sebatian X.
(iii)State one physical property of compound X.
Nyatakan satu sifat fizik bagi sebatian X.

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    2021-03-27T14:41:31+08:00

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