Everything Science Grade 12

CHAPTER 5. THE CHEMICAL INDUSTRY 5.4 Air Nitrogen Methane Hydrogen Haber process NH 3 H 2 SO 4 Fertiliser C Process Y NO Brown g ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 Electrochemistry and batteries ESCCQ You will remember fromchapter 4 that a galvanic ce ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 Chemical reactions The chemical reactionsthat take place in each of a battery’s half cells ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY Anode (oxidation): Pb(s)+ SO^2 4 (aq)− � PbSO4 (s)+ 2e−(E◦=− 0. 356 V) Cathode (reduction): ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 in cars, where they provide the high current that is needed by the starter motor. They are ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY The manganese(IV) oxide in the cell removes thehydrogen produced above, according to the fo ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 The paste of ammoniumchloride reacts according to the following half-reaction: 2NH+ 4 (aq) ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY The growth of South Africa’s chemical industry was largely because of the mines, which nee ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 The membrane cell is very similar to the diaphragm cell, except that the anode and cathode ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY A battery consists of one or more voltaic cells, each of which is madeup of two half cells ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 (e) A compound given to a plant to promote growth. (f) An electrolyte used in lead-acid bat ...

5.5 CHAPTER 5. THE CHEMICAL INDUSTRY + Power supply - Saturated NaCl Depleted NaCl M Gas A Gas B N NaOH (a) Give two reasons why ...

CHAPTER 5. THE CHEMICAL INDUSTRY 5.5 Column A Column B The electrode metal Lead sulphate Electrolyte Mercury A product of the ov ...

Part II Physics ...

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Motion in Two Dimensions 6 6.1 Introduction ESCCW In Grade 10, we studied motion in one dimension and briefly lookedat vertical ...

CHAPTER 6. MOTIONIN TWO DIMENSIONS 6.2 object moving upwards� g g �object moving downwards Figure 6.1: Objects moving upwards or ...

6.2 CHAPTER 6. MOTIONIN TWO DIMENSIONS vf = vi+ gt (6.1) Δx = (vi+ vf) 2 t (6.2) Δx = vit + 1 2 gt^2 (6.3) v^2 f = v^2 i+ 2gΔx ( ...

CHAPTER 6. MOTIONIN TWO DIMENSIONS 6.2 v^2 f = vi^2 + 2gΔx (0)^2 = (−10)^2 + (2)(9,8)(Δx) −100 = 19,6Δx Δx =− 5 , 102 m The valu ...

6.2 CHAPTER 6. MOTIONIN TWO DIMENSIONS Step 2 : Determine how to approach the problem A problem like this onecan be looked at as ...