京东 11.11 红包
reactivity series作业讲解
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Thermite Reaction (10.2 reactivity series)
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Reactivity series of metal金属活动顺序
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Displacement between copper and silver nitrate (10.2 reactivity series)
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[IG化学笔记题] Extraction of Al and Zn
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II-4 Kc and ICE Drill 1 MCQ Q5
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II-3 MCQ 19-21 Q7
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II-3_Factors affecting rate_MCQ_Drill1_Q4
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titration - preparing a standard solution
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I-1 STR 19-21 Q7
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Identification of chromium(III)_Adding NaOH solution to chromium (III) nitrate
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Preparing A Soluble Salt
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Iodoform test
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II-4 Effect of T on equilibrium MCQ Drill 1 Q1
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II-4_Kp_MCQ_Drill1_Q1
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Thermal decomposition of calcium carbonate (10.2 Reactivity series)
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IV-1_Optical isomerism
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II-4 Kc and ICE Drill 1 MCQ Q7
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[AL化学] Ch29_¹H NMR Spec Spectra Interpretation Part II
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Ch20 Electrochemistry assessed hw - scie sep. 2020 - 习题讲解
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8.推小车
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习题课-Ch19 Lattice energy培优题(I) and (II)
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Flame tests on cations
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Simple Redox Titration
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Ch29 section D chromatography
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[IG化学笔记题] Topic 14.2 Alkanes
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II-4 Kc and ICE Drill 1 MCQ Q4
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Simple Distillation
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[AS化学] IV-4 IR Spectroscopy - Example Spectra
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I-4 Part A Solids 笔记题
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I-4 Part A Solid 笔记题+例题讲解
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testing for halide ions in solution
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Using a gas syringe to measure volumes of gases (2.1 and 7.3)
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Acid base Titration_using bromophenol blue
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[IG化学]Topic 7.2 Rate of reaction复习
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Reduction of copper oxide by hydrogen (7.4 Redox)
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II-2_Enthalpy change of a displacement reaction CuSO₄+Zn
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IGCSE Physics Paper 0625_M22_QP_42_Full solution with Detailed Explanation
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Investigation of a Rate of Reaction by Gas Collection
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identification of sulfate ion
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identification of iron(III) ion