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Chemistry Making Guide Paper 1

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PDF 364.06 KB 11 pages Jul 23, 2026

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Paper 1 Subject Chemistry
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SECTION A 1. Which one of the following substances does not change its mass when heated? A. Hydrated sodium carbonate B. Anhydrous sosdium carbonate C. Calcium carbonate D. Copper (II) carbonate 2. The full symbol of an atom of an element X is X 8 16 . The charge on an ion of X is; A. X 2+¿¿ B. X 2−¿¿ C. X −¿¿ D. X +¿¿ 3. Which one of the following salts will not form a precipitate with lead (II) ions solution? A. Potassium carbonate B. Potassium chloride C. Potassium nitrate D. Potassium sulphate 4. Which one of the following molecular formulae is that of an alkane? A. C3 H 8 B. C2 H 2 C. C2 H 4 D. C3 H 6 5. Hydrogen chloride reacts with ammonia according to the following; Equation: N H 3 (g)+HC l(g) NH 4Cl(s) The mass of ammonium chloride formed when excess ammonia is reacted with 0.65dm3 of hydrogen chloride at room temperature. (One mole of a gas occupies 24dm3 at room temperature. N = 14, H = 1, Cl = 35.5). A. 0.65 x 24 53.5 B. 53.5 x 0.65 24 C. 0.65 x 24 50.5 MARKING GUIDE 545/1 CHEMISTRY B B C A D D. 0.65 x50.5 24 6. Which one of the following salts will dissolve in water to form an acidic solution? A. (NH 4) SO4 B. Na2CO3 C. CH 3COONa D. K 2CO3 7. Which one of the following nitrates will decompose when heated to give a metal oxide when strongly heated? A. Silver nitrate B. Sodium nitrate C. Calcium nitrate D. Mercury (II) nitrate 8. Which one of the following mixtures can be separated by fractional crystallization? A. Iron (III) chloride and lead (II) chloride B. Iron and sulphur C. Potassium nitrate and sodium nitrate …
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Chemistry Making Guide Paper 1 , is an educational document on StudyUganda.com covering Paper 1, Subject Chemistry. This resource includes: "SECTION A 1. Which one of the following substances does not change its mass when heated? A. Hydrated sodium carbonate B. Anhydrous sosdium carbonate C. ……" (Format: PDF) — 364.06 KB, 11 pages. Added July 23, 2026.

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