Question
7.(a) The extraction of iodine from seaweed by using. acidified hydrogen peroxide solution is shown in the following ionic equation. Pengekstrakan iodin daripada rumpai laut dengan menggunakan larutan hidrogen peroksida berasid ditunjukkan dalam persamaan ion yang berikut . 2H- + ...
Continue reading
New Comer 1

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 ...
Continue reading
New Comer 0

Question
3.(a)Electron arrangement for atom of element T is 2.1. Element T reacts with oxygen to form a compound with the formula T2O. Susunan elektron bagi atom unsur T ialah 2.1 . Unsur T bertindak balas dengan. oksigen untuk membentuk suatu ...
Continue reading
New Comer 0

Question
2. Diagram2 shows the flow chart for the production of fertiliser. X A and B are the manufactured substances from Haber Process and Contact Process respectively. Rajah 2 menunjukkan carta alir bagi pengeluaran baja X . A dan B masing-masing ...
Continue reading
New Comer 0

Question
9 (a)     The graph in Diagram 7.1 shows the curves of experiment I and experiment II that was carried out to study the rate of reaction. Graf di Rajah 7.1 menunjukkan lengkung bagi eksperimen I dan eksperimen II yang dijalankan ...
Continue reading
New Comer 0

Question
8 . (a) Diagram 6.1 shows the reaction occurred in a voltaic cell using magnesium ribbon and copper plate as electrodes. Based on Diagram 6.1, explain how electrical current is produced. Rajah 6.1 menunjukkan tindak balas yang berlaku dalam suatu sel ...
Continue reading
New Comer 0

Question
7 . (a) Diagram 5.1 shows HA gas is flowed into two beakers containing propanone and water respectively to study the properties of acid. Based on Diagram 5.1, compare the observation in beaker P and beaker. Explain your answer. Rajah 5.1 ...
Continue reading
New Comer 0

Question
6 . (a) Table 2 shows the value of heat of neutralisation for the reaction between two different acids with sodium hydroxide solution. Jadual 2 menunjukkan nilai haba peneutralan bagi tindak balas antara dua asid berbeza dengan larutan natrium hidroksida. (i) What ...
Continue reading
New Comer 0

Question
5 . Industrial waste water containing heavy metal cations should be treated before being released into the river or drainage system. A sample of industrial waste water is taken and analysed for the presence of heavy metal cations. Diagram 4 ...
Continue reading
New Comer 1