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Chemistry
CHAPTER 9 : MANUFACTURED SUBSTANCES IN INDUSTRY

NAME: NUR INSYIRAH BTE. AB HAMED

CLASS: 4 SAINS GUNAAN (SG)

SCHOOL: SMK SERI INDAH

CONTENT
Content Introduction 9.1 Sulphuric acid 9.1.1 Properties of sulphuric acid 9.1.2 The uses of sulphuric acid 9.1.3 The industrial process in manufacture of sulphuric acid 9.1.4 Environmental pollution by sulphuric acid 9.2 Ammonia and its salt 9.2.1 Properties of ammonia 9.2.2 The uses of ammonia 9.2.3 The industrial process in manufacture of ammonia 9.3 Alloys 9.3.1 Physical properties of pure metals 9.3.2 Meaning and purpose of making alloys 9.4 Synthetic polymers 9.4.1 The meaning and types of polymers 9.4.2 Advantages of synthetic polymers 9.4.3 Environmental pollution caused by synthetic polymers 9.4.4 Methods to overcome the environmental pollution caused by synthetic polymers 9.5 Glass and ceramics 9.6 Composite material Conclusion References Page 3 4 5 7 10 11 12 13 14 15 16 17 17 18 18 22 24 25

INTRODUCTION
All the objects that exist around us are made up of chemical substances. These objects exist an element, compound or mixture. All these objects contribute benefit to humankind. As time goes on, human has done many researches to ensure all these chemical substances will be enough for the use of themselves.

2

Chapter 9 of Form 4 syllabus introduces the students with manufactured substances in industry. This is important for the students to appreciate the knowledge of chemistry that is still new for themselves. Personally, I think that this chapter is an interesting chapter as it revealed the way of scientist produces the material around me. It also gives me new knowledge of the uses of chemical substances that I usually found in the laboratories. I hope, by learning this chapter, I will be more interested in learning chemistry as it will help me in the future. All the equations from this chapter make me more understand of the previous chapters.

9.1 SULPHURIC ACID
9.1.1 Properties of

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