PDF-92.Electrolysing copper(II)TopicTimingTeaching tips1.Cathode (negative

238Classic chemistry experiments 1Set up the circuit shown in the diagram Do not switch on the power supply until2Switch on and leave for about 5 min Watch what happens and record your results3E. 2Classic chemistry experiments 1.Mix about 5 g of the mixture with 50 cm2.Filter the mixture into a conical flask and pour the filtrate into an evaporating basin.3.Heat the salt solution gently until 3.1 before . viewing the slide show.. Unit 9. The Relationship Between Electricity and the Atom. Electrolysis (3.1). Cathode Ray Tubes (3.1). Mass-to-Charge Ratio for Electron (3.1). Positive Particles (3.1). Electrolysis . Process by which an electric current is passed through a substance to cause a chemical change.. The chemical change is one in which the substance loses or gains an electron.. Electrolysis. 174Classic chemistry experiments 1.Place approximately 3 cm depth of iron wool in the bottom of a test-tube. Wet the2.Invert the test-tube in a beaker of water (approximately 20 cm3.Measure the length Electrorefining. The most important thing to know for electrorefining is (click) the anode is an . impure. sample of the metal we want to refine. Remember the anode is connected to the positive terminal of the power supply.. Electrolytic Cells. REVERSE spontaneous reactions through the input of . electricity . A non spontaneous reaction that is forced to occur with the input . of energy . Electrolysis of Water. in acidic solution . Reduction. Learning Outcomes. Introduction to oxidation . and reduction. : simple examples . only, e.g. . Na with Cl. 2. , Mg with . O. 2. , Zn . with Cu. 2+. . Oxidation . and reduction . in terms of loss . Electrolytic . P. rocesses. What is electrolysis?. Breaking down an ionic substance using electricity.. Metals have a positive charge and non metals have a negative charge.. Hydrogen is an exception (it is a non metal with a positive charge.. Objectives. Apply basic chemistry principles to . understand . the process of . electrolysis. Understand how electrolysis is used in the processing of copper . ores . Electrolysis. Uses . an electrical current to move ions in an electrolyte solution between two . Greenbaum. Frank Paynter. Prof. Betty Lise Anderson. Here’s what you’re going to build. Principle of operation. An infrared beam passes through your finger. You are mostly transparent, but blood absorbs this wavelength. Electrolysis . Process by which an electric current is passed through a substance to cause a chemical change.. The chemical change is one in which the substance loses or gains an electron.. Electrolysis. H AND S - O N A CTIVITY O BJECTIVES  Apply basic chemistry principles to understan d the process of electrolysis  Understand how electrolysis is used in the processing of copper ores T IME R 1 - electrolytes and non - electrolytes Electrolysis is the process of electrically inducing chemical changes in a conducting melt or solution e.g. splitting an ionic compound into the metal and non .3. Electrolysis in industry. In this tutorial we will look at:. Describing the extraction of aluminium by electrolysis . Explaining the formation of the products in the electrolysis of copper . sulfate.