1

SECTION 1

2

3

Indications of a Chemical Reaction

4

1. Release of heat and light

5

2. Production of a gas

6

3. Formation of precipitate

7

4. Color change

8

Characteristics of Chemical Equations

9

10

Word and Formula Equations

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12

13

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CH4(g) + O2(g) → CO2(g) + H2O(g)

15

Balancing a Chemical Equation

16

Guidelines for Balancing Equations

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H2O(l) → H2(g) + O2(g)

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DO NOT!.....

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DO!!!!.....

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Reactant side Product side

H 4 4

O 2 2

Sample Problem

23

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Adjust the coefficients

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Practice Problem 1

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Practice Problem 2

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Practice Problem 3

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Practice Problem 4

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Practice Problem 5

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Practice Problem 6

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Practice Problem 7

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SECTION 2

35

1. Synthesis Reactions

36

Reactions of Elements with Oxygen and Sulfur

37

38

2Mg(s) + O2(g) → 2MgO(s)

Group 2 Elements

39

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Reactions with Sulfur

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Nonmetals

43

44

Reactions of Metals & Halogens

45

Group 2 Metals & Halogens

46

Synthesis Reactions with Oxides

47

Oxyacids

48

49

Practice Problems

50

2. Decomposition Reactions

51

Decomposition of Binary Compounds

52

electricity

53

54

Decomposition of Metal Carbonates

55

Decomposition of Metal Hydroxides

56

Decomposition of Metal Chlorates

57

Decomposition of Acids

58

Practice Problems

59

3. Single-Replacement Reactions

60

Replacement of a Metal in a Compound by Another Metal

61

62

Replacement of Hydrogen in Water by Metal

63

Replacement of Hydrogen in Acid by Metal

64

Replacement of Halogens

65

66

Practice Problems

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4. Double-Replacement Reactions

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Formation of a Precipitate

71

Formation of a Gas

72

Formation of Water

73

5. Combustion Reactions

74

Practice Problems

75

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77

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Practice Problem

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