CONTENTS 3
1.MATTER 3
2.IDENTIFICATION OF AND CHANGES IN MATTER 4
3.CLASSIFICATION OF MATTER 8
4.WATER AND ITS COMPOSITION 11
5.AIR 15
6.CARBON(Ⅰ) 20
7.CARBON(Ⅱ) 23
8.SULFUR 27
9.ACIDS OF SULFUR 31
10.CHEMICAL FORMULAS AND EQUATIONS(Ⅰ) 34
11.CHEMICAL FORMULAS AND EQUATIONS(Ⅱ) 37
12.ACIDS,BASES,AND SALTS 40
13.IONS AND ATOMS 44
14.METALS AND METALLURGY (Ⅰ) 49
15.METALS AND METALLURGY(Ⅱ) 53
16.IRON AND STEEL(Ⅰ) 56
17.IRON AND STEEL(Ⅱ) 60
18.ALUMINUM 64
19.OTHER NON-FERROUS MFTALS 68
20.CHLORINE AND BROMINE 71
21.IODINE AND FLUORINE 75
22.THE PHOSPHORUS FAMILY(Ⅰ) 79
23.THE PHOSPHORUS FAMILY(Ⅱ) 83
24.SOLUTIONS,SUSPENSIONS,AND EMULSIONS(Ⅰ) 87
25.SOLUTIONS,SUSPENSIONS,AND EMULSIONS (Ⅱ) 91
26.CALCIUM(Ⅰ) 95
27.CALCIUM(Ⅱ) 98
28.MAGNESIUM AND SILICON 101
29.SOME LESS COMMON METALS AND THEIR USES(Ⅰ) 106
30.SOME LESS COMMON METALS AND THEIR USES(Ⅱ) 109
VOCABULARY 115