GRADE 12 PHYSICAL SCIENCES LEARNER NOTES - Mail & …

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The SSIP is supported by SENIOR SECONDARY IMPROVEMENT PROGRAMME 2013GRADE 12 PHYSICAL SCIENCES LEARNER NOTES 1TABLE OF CONTENTS LEARNER NOTES SESSION TOPIC PAGE 16 Consolidation exercises rates, chemical equilibrium and electrochemistry 3 - 11 17 Chemical change and chemical systems extraction of aluminium and Chloralkali industry, 12 - 32 18 1. Electrostatics - GRADE 11 revision2. Electricity GRADE 11 revision33 - 42 19 Electrodynamics motors and generators and alternating current. 43 - 55 2GAUTENG DEPARTMENT OF EDUCATION SENIOR SECONDARY INTERVENTION PROGRAMME PHYSICAL SCIENCES GRADE 12 SESSION 16 ( LEARNER NOTES ) SESSION 16 TOPIC: CONSOLIDATION EXERCISES ON RATES, CHEMICAL EQUILIBRIUM AND ELECTROCHEMISTRY QUESTION 1: 20 minutes In order to investigate the rate at which a reaction proceeds, a LEARNER places a beaker containing concentrated nitric acid on a sensitive balance.

B volume of the gases increase . C amount of SO. 2. decreases . D amount of O. 2. remains the same. 2.7. The following equilibrium exists in a saturated salt solution. NaCl (s) Na + (aq) + Cl -(aq) What can be done in order to obtain a precipitate of NaCl ? A Increase the pressure on the system . B Heat the solution

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