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