Name: ......................................................................................................... Class: .......................... Chemistry: Chapter 1 – 3 Revision 1. Use kinetic theory of matter and explain what happens to particles when a) they gain energy ................................................................................................................................................................. ................................................................................................................................................................. ................................................................................................................................................................. ................................................................................................................................................................. b) they lose energy ................................................................................................................................................................. ................................................................................................................................................................. ................................................................................................................................................................. ................................................................................................................................................................. 2. Water boiling point is 100°C and the freezing point is below 0°C. Draw heating curve and cooling curve for water in the space provided: Heating Curve Cooling Curve 1 3. Identify below as molecules, ions or atoms. Deduce if the diagram contain pure or not pure substance. 2 4. Record the data in the measuring devices below in the specified unit given Device Measurement ....................... mm ........................ °C .............................. seconds .......................... cm3 3 ........................ g 5. State the separating technique used to separate the following mixture. You may use more than one technique for certain mixtures. a) Solid from solid : ......................................................................................................................... b) Solid from liquid : ........................................................................................................................ c) Liquid from liquid: ........................................................................................................................ 6. a) Label the diagram below: Number Description 1 2 3 4 5 6 4 b) State two factors that is important in chromatography separation Method 1: ......................................................................................... Method 2: ......................................................................................... c) Explain the importance to draw the sample lines in pencil ............................................................................................................................................................. ............................................................................................................................................................. 7. a) Label the type of distillation below b) Describe the differences between two distillation method above ............................................................................................................................................................. ............................................................................................................................................................. ............................................................................................................................................................. ............................................................................................................................................................. 5 c) State the function of fractionating column .......................................................................................................................................................... d) Explain the main principals behind successful separation of crude oil (petroleum) into different components. ............................................................................................................................................................. ............................................................................................................................................................. ............................................................................................................................................................. ............................................................................................................................................................. 8. Outline the processes involved to make copper sulfate salt from copper oxide powder and sulfuric acid solution. 6 9. Identify solute, solvent and solution from the diagram below 10. 7 11. The diagram below shows the lattice structure of NaCl. a) Name the type of bond between Na and Cl .................................................................................................................... b) write electronic configuration for Na ions : ........................................... Cl ions : ............................................ c) State the periodic group of Na : ................................ Cl: ................................. d) Draw a dot-cross diagram to show the bond between Na and Cl in the space below: 8 12. Draw dot-cross diagram to represent covalent bond for the molecules below: Molecule Diagram H2 Cl2 H2O CH4 9 HCl N2 C2H4 CH3OH 10 CO2 13. Write the formula for ionic compounds below Ion F- O2- Br- S2- Se-2 P-3 N3- Cl- Li+ K+ Ca+2 Al+3 Zn (II) +2 Fe (III) +3 Hg (I) + Pb (IV) +4 11
