2020

10.1 The mining industry contributes towards the South African economy. Gold is one of the minerals that is being mined in South Africa. 10.1.1 Write down the name of the location of the major mining activity in South Africa. (1) The following chemical reaction occurs during the final steps in the recovery process of gold. … Read more

9.1 Consider the redox reaction given below. 9.1.1 Define oxidation reaction in terms of electron transfer. (2) Write down the: 9.1.2 Formula of the reducing agent. (2) 9.1.3 Reduction half reaction (2) 9.2 Consider the redox reaction below: 9.2.1 Determine the oxidation number of nitrogen (N) in . (2) 9.2.2 Balance the above chemical equation … Read more

8.1 Consider the chemical reaction below: 8.1.1 Define a base according to a Lowry-Bronsted theory. (2) 8.1.2 Write down ONE conjugate acid-base pair in the equation. (1) 8.1.3 Is the reaction mixture ACIDIC or ALKALINE at the completion of the reaction? Give a reason for your answer. (2) 8.1.4 Write down the formula of a … Read more