From Atoms to Materials

Checkpoint 13.1 (d) Copper can be pulled into long wires. P hysical property: (c) Lemon is sour. P hysical property: (a) Chlorine is a greenish yellow gas at room conditions. P hysical property: (b) Aluminium can be rolled into thin sheets. P hysical property: 1. Matter can be classified into pure substances and (a) . Pure substances can be further divided into (b) and (c) . 2. Some properties of some substances are listed below. State whether each of them is a physical property or a chemical property. Property Physical property or chemical property? (a) Water boils to become steam. (b) Calcium carbonate is corroded by a dilute acid. Carbon dioxide is given off. (c) Magnesium reacts with a dilute acid to give off hydrogen. (d) Gold is shiny. 3. What physical properties are involved in the statements below? Write the answers in the space provided. 9 13 From Atoms to Materials © United Prime Educational Publishing (HK) Limited 2024 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of the Publisher. Sample