2.1 The employer is claiming that he is paying an editor 5% more than a typist for every 100 documents edited. Verify, with calculations, whether the statement is valid or not. (8) 2.2 Use ANNEXURE A that shows the information on the amount of sugar in different types of drinks. 2.2.1 Determine the range of the … Read more
1.1.1 How much will a person with 18 kg of washing pay for washing and drying with Staysoft (fabric softener) and ironing? (5) (a) The family claims that if they can take their washing every Friday to the laundry for washing and drying with Staysoft (fabric softener), instead of hiring a helper, they could save … Read more
The balanced chemical equation for the EXTRACTION of gold from its ore is as follows: 10.1 State ONE disadvantage of using cyanide (CN– ) in the extraction of gold. (1) 10.2 Will the final solution of the extraction process be ACIDIC or BASIC (ALKALINE)? Give a reason for the answer. (2) 10.3 Determine the oxidation … Read more
The unbalanced equations for two redox reactions, in which SO2 is involved, are shown below. 9.1 Explain what is meant by the term redox reaction. (2) 9.2 Write down the oxidation number of Mn in: 9.2.1 KMnO4 (1) 9.2.2 MnSO4 (1) 9.3 Is Mn in Reaction 2 OXIDISED or REDUCED? Give a reason for the … Read more