2. Final Examination 2022, Question 13 A student carried out a series of experiments to investigate the properties of sucrose (table sugar). In the first experiment, the student investigated the melting point of sucrose.
Two metal cubes of equal volume were placed on a hotplate as shown in the diagram. One was made of zinc (Zn) and the other was made of aluminium (Al). One gram of sucrose was placed on top of each cube and the hotplate was turned on.
Metal cube (Zn)
Sucrose
Metal cube (AI)
Hot plate
)Fig. 15.14 Is melting an example of a physical change or a chemical change? Explain your answer. j Go to page 79 of your Assessment Book to answer more exam-style questions.