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The Sijil Pelajaran Malaysia (SPM), or the Malaysian Certificate of Education, is a national examination sat for by all Form 5 secondary school students in Malaysia.It is the equivalent of the General Certificate of Secondary Education (GCSE) of England, Wales and Northern Ireland; the Nationals 4/5 of Scotland; and the GCE Ordinary Level (O Level) of the Commonwealth of Nations.
The science examination in PMR was also divided into 2 papers, that was Science Paper 1 and Science Paper 2. Paper 1 consisted of 40 multiple choice questions in escalating difficulty and was worth 40 marks. The time limit for this paper was 1 hour. The Science Paper 1, similar to Mathematics Paper 1, is usually very tough to score above 30.
A number of subjects previously offered exam papers and syllabuses unique to Singapore, but these have since been retired or planned to be phased out. After taking O-levels, some Singapore students go on to GCE Advanced Level exams, which are also marked by Cambridge International Examinations .
A typical mixture is 3 parts of concentrated sulfuric acid and 1 part of 30 wt. % hydrogen peroxide solution; [1] other protocols may use a 4:1 or even 7:1 mixture. A closely related mixture, sometimes called "base piranha", is a 5:1:1 mixture of water, ammonia solution ( NH 4 OH , or NH 3 (aq) ), and 30% hydrogen peroxide.
The Mother Tongue paper is different from the other papers, in that it includes a "Mid-Year Examination" for written papers (i.e. Papers 1 and 2), taken on the first Monday of the June school holidays. The Oral and Listening Comprehension papers are usually taken in July, and the results for Mother Tongue are subsequently released in August.
The first step (called SC-1, where SC stands for Standard Clean) is performed with a solution of (ratios may vary) [2] 5 parts of deionized water; 1 part of ammonia water, (29% by weight of NH 3) 1 part of aqueous H 2 O 2 (hydrogen peroxide, 30%) at 75 or 80 °C [1] typically for 10 minutes. This base-peroxide mixture removes organic residues.
Paper Coating 1) The paper or board 2) The first layer of coating to even out the surface 3) A second layer for an even smoother and whiter surface. Pigments that absorb in the yellow and red part of the visible spectrum can be added. As the dye absorbs light, the brightness of the paper will decrease, unlike the effect of an optical ...
The solubility of a specific solute in a specific solvent is generally expressed as the concentration of a saturated solution of the two. [1] Any of the several ways of expressing concentration of solutions can be used, such as the mass, volume, or amount in moles of the solute for a specific mass, volume, or mole amount of the solvent or of the solution.