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Chemistry Revission Questions Week 9 Of Term 1 2026

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PDF 151.91 KB 5 pages Jul 23, 2026
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1 CHEMISTRY REVISSI ON QUESTIONS WEEK 9 OF TERM 1 2026 Name…………………………………………………………..Stream………… Item 1. Mulungi was tasked by her teacher to make research about the properties of elements in period 3. As she made her research, she came across the values of density as shown below. Element Na Mg Al Si P S Cl Ar Density 0.971 1.728 2.702 2.33 1.82 2.07 3.214 1.782 After getting this information, she decided to look for a person who can explain it well and she was referred to you. Task As a learner of chemistry, a) Explain the categories of elements b) Help Mulungi interpret and analyse the data properly c) What is the impact of these elements on the environment? Item 2 A s.4 learner was reading about trend s in the periodic table for elements in period 3.As she was reading, she found out that when sodium reacts with chorine, it forms sodiumchloride.She is now interested in knowing how other elements of the same period react with chlorine. Task As a learner of chemistry, explain to the s.4 learner how other elements react with chlorine. Item 3 2.4 g of X reacted with 1.6g of oxygen to form an oxide.(X=24, O=16) Task As a learner of chemistry, a) State the category of the oxide of X. b) What are the properties of the oxide of X c) Calculate the molecular formula of the oxide of X if it has a molecular mass of 40g d) What is the impact of the Oxide of X on the environment. 2 Item 4 An industry wanted to produce zincoxide . The production of zincoxide involves heating zinccar bonate strongly which results into its decomposition according to the equation ZnCO 3(s) ZnO(s) + CO 2(g) The industry is also interested to know the mass of …
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Chemistry Revission Questions Week 9 Of Term 1 2026, is an educational document on StudyUganda.com. This resource includes: "1 CHEMISTRY REVISSI ON QUESTIONS WEEK 9 OF TERM 1 2026 Name…………………………………………………………..Stream………… Item 1. Mulungi was tasked by her teacher to make research about the ……" (Format: PDF) — 151.91 KB, 5 pages. Added July 23, 2026.

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