Quick revision3 draw diagrams ppt
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This document contains descriptions and diagrams of several chemical reactions and experiments: 1) A reaction between magnesium and copper chloride produces magnesium chloride and copper. 2) Precipitation of silver chloride is achieved through a reaction of silver nitrate and sodium chloride. 3) Copper(II) oxide reacts with sulfuric acid to produce copper(II) sulfate and water. 4) Heating zinc carbonate produces zinc oxide and carbon dioxide, and the gas changes limewater to chalky.
Quick revision3 draw diagrams ppt
- 1. QUICK REVISION • DRAW DIAGRAMS
- 2. Heat of displacement of metals Reaction equation Mg + CuCl2 MgCl2 + Cu Observations Diagram Magnesium and copper(II) chloride solution Magnesium dissolves Blue solution decolourise
- 3. Preparation of insoluble salt Aim equation AgNO3 + NaCl AgCl + NaNO3 Observations Diagram To prepare silver chloride salt White precipitate formed
- 4. Preparation of soluble salt using acid and oxide metal Aim equation CuO + H2SO4 CuSO4 + H2O Observations Diagram To prepare copper(II) sulphate Copper(II) oxide dissolve Blue solution formed 50 cm3 sulphuric acid 0.5 mol dm-3 Excess copper(II) oxide powder
- 5. Heating of carbonate metal Reaction equation ZnCO3 ZnO + CO2 Observations Diagram Heating zinc carbonate Residue is yellow(hot) and white (cold) Gas changed lime water chalky
- 6. To determine reactivity of metals with oxygenReaction equation 2Zn + O2 2ZnO Observations Diagram Zinc with oxygen Zinc burns to leave white powder Potassium manganate(VII) Glass wool Metal powder Heat (1)Heat (2)
- 7. Ethanol ethene Catalyst equation C2H5OH C2H4 + H2O Gas ethene water Glass wool Soaked in ethanol Porcelain chips Heat Observations Diagram Hot porcelain chips Gas collected decolourise brown bromine water