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INSTRUCTIONS 1. The answers you provide must be your own, original work. No copying from any source is allowed. 2. Calculators may be used. 3. WRITE answers FOR SECTION A and B on FOLIO line paper. Where appropriate you may use the graph paper supplied. Click on the button below to download the graphing paper. Remember to number your answers on the graphing paper. 4. No typed answers are allowed. 5. Multiple pages of handwritten answers must be scanned and saved as 1 PDF FILE. No images are allowed or will be accepted. (Use Cam-scanner or any app that has this function). 6. Write your answers to each question below one another and NOT NEXT to each other. Draw a line at the end of each question. 7. Your pages scanned in the PDF File should be UPRIGHT and not sideways or upside down. 8. Scan all your answers to this exam into one .pdf file. Name your file as indicated: CAM ECON AS_InitialSurname_June P2 9. FINAL answers must be rounded off to 2 decimal places unless stated otherwise in any specific question. 10. Write NEATLY and Legible and number according to the numbering system in this assessment.

1.10 The mass (in grams) of 7,25 dm3 of O2 gas at STP is: (2)

1.8 When nuclear reactions take place, the elements produced are different from the elements that reacted. Nuclear equations, such as the one below, are used to represent the changes that occur. (1)     Right-click on the button to open the data booklet in a new tab.     The nucleon (mass) number total is constant at 236 and the proton number total is constant at 92. In another nuclear reaction, uranium-238 is reacted with deuterium atoms. An isotope of a new element, J, is formed as well as two neutrons.   Right-click on the button to open the data booklet in a new tab.   What is isotope J?     Right-click on the button to open the data booklet in a new tab.     

1.16 Which reaction does not contribute to the problem of acid rain? (1)

1.23 Oct-1-ene, CH3(CH2)5CH=CH2, can be thermally cracked.   Which combination of compounds W, X, Y and Z can be obtained by thermally cracking oct-1-ene?   W: CH2=CH2         X: CH3CH=CH2                   Y: CH3CH2CH3            Z: CH2=CHCH=CH2   (1)

1.24 Which organic compound would not give either a yellow precipitate when treated with alkaline aqueous iodine or an orange precipitate when treated with 2,4-dinitrophenylhydrazine reagent? (1)

1.17   0.10 g of the volatile liquid X formed 0.025 dm3 of vapour at 100°C and atmospheric pressure. 1 mol of vapour occupies 22.4 dm3 at 0°C and atmospheric pressure. (1) What is the relative molecular mass of X?   Right-click on the button to open the data booklet in a new tab.     

1.18 The equation for the complete combustion of propan-1-ol is shown.   Right-click on the button to open the data booklet in a new tab.        What is the standard enthalpy change of combustion of propan-1-ol, in kJ/mol? (1)

1.29 Three elements, X, Y and Z, have electronic configurations as shown. X 2,6 Y 2,8,1 Z 2,8,7   Which formulae represent compounds that conduct electricity in the liquid state?   1 YZ 2 Y2X 3 Z2X (1)

 1.6 Aluminium carbide, Al4C3, reacts readily with aqueous sodium hydroxide. The two products of the reaction are NaAlO2 and a hydrocarbon. Water molecules are also involved as reactants. What is the formula of the hydrocarbon?   (1)   A CH4 B C2H6 C C3H8 D C6H12