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COMMUNITY CHEMISTRY FINAL EXAM REVIEW 12011.GUGS.

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Presentation on theme: "COMMUNITY CHEMISTRY FINAL EXAM REVIEW 12011.GUGS."— Presentation transcript:

1 COMMUNITY CHEMISTRY FINAL EXAM REVIEW GUGS

2 FINAL EXAM REVIEW TOPICS 1.LAB SAFETY 2.SCIENTIFIC METHOD 3.METRICS 4.DENSITY 5.WATER & THE HYDROLOGIC CYCLE 6.ELEMENTS & USING THE PERIODIC TABLE 7.NAMING IONIC COMPOUNDS 8.PROPERTIES OF IONIC VS. MOLECULAR COMPOUNDS 9.SOLUTIONS & SOLUBILITY /POLAR VS. NON POLAR MOLECULES 10.pH 2011.GUGS2

3 PRACTICE QUESTIONS 2011.GUGS3

4 LAB SAFETY: procedures & equipment List 3 types of safety apparel & explain why they are used: 2011.GUGS4

5 LAB SAFETY: procedures & equipment List 3 types of safety apparel & explain why they are used: 1.Goggles: protect eyes 2.Aprons: protect clothing 3.Gloves: protect hands 2011.GUGS5

6 LAB SAFETY: procedures & equipment List 3 safety RULES & explain why they are enforced: 2011.GUGS6

7 LAB SAFETY: procedures & equipment List 3 safety RULES & explain why they are enforced: possible answers 1.Tie back long hair: won’t catch fire. 2.Cover feet & legs: to protect from chemical splashing/spills & broken glass. 3.Know the procedure: to prevent unsafe errors. 4.Remove dangling jewelry: can get caught on things. 5.Dispose of chemical wastes as directed: some chemicals can be pollutants GUGS7

8 LAB SAFETY: EPA, OSHA & MSDS What is the EPA & what is it’s purpose? 2011.GUGS8

9 LAB SAFETY: EPA, OSHA & MSDS What is the EPA & what is it’s purpose? EPA stands for Environmental Protection Agency. It is a U. S. government agency protects human health and the environment 2011.GUGS9

10 LAB SAFETY: EPA, OSHA & MSDS What is OSHA & what is it’s purpose? 2011.GUGS10

11 LAB SAFETY: EPA, OSHA & MSDS What is OSHA & what is it’s purpose? OSHA is the Occupational Health and Safety Administration. Its mission is to prevent work-related injuries, illnesses, and occupational fatality by issuing and enforcing standards for workplace safety and health GUGS11

12 LAB SAFETY: EPA, OSHA & MSDS WHAT DO THE LETTERS MSDS MEAN? 2011.GUGS12

13 LAB SAFETY: EPA, OSHA & MSDS WHAT DO THE LETTERS MSDS MEAN? MSDS stands for material safety data sheet GUGS13

14 LAB SAFETY: EPA, OSHA & MSDS WHAT IS THE PURPOSE OF MSDS? 2011.GUGS14

15 LAB SAFETY: EPA, OSHA & MSDS WHAT IS THE PURPOSE OF MSDS? Material safety data sheet (MSDS) is a form with data regarding the properties of a particular substance. An important component of handling or working with a substance in a safe manner GUGS15

16 LAB SAFETY: EPA, OSHA & MSDS WHAT IS LD 50? 2011.GUGS16

17 LAB SAFETY: EPA, OSHA & MSDS WHAT IS LD 50? The LD 50 is the dose that kills half (50%) of the animals tested (LD = "lethal dose"). The animals are usually rats or mice, although rabbits, guinea pigs, hamsters, and so on are sometimes used GUGS17

18 LAB SAFETY: EPA, OSHA & MSDS Using an actual MSDS, provide the following information: 1.Name of substance: _____________ 2.Chemical formula: _______________ 3.Boiling Point: ___________________ 4.LD-50: _________________________ 2011.GUGS18

19 Scientific Method List the steps in the Scientific Method: 2011.GUGS19

20 Scientific Method List the steps in the Scientific Method: 1.State the problem (with variables). 2.Form hypothesis. 3.Develop an experimental design that has a control. 4.Gather data (perform experiment). 5.Analyze data & FORM CONCLUSIONS. 6.Evaluate the validity of the experiment GUGS20

21 Scientific Method WHAT IS THE EXPERIMENTAL CONTROL? 2011.GUGS21

22 Scientific Method WHAT IS THE EXPERIMENTAL CONTROL? A sample in which a factor whose effect is being estimated is absent or is held constant, in order to provide a comparison GUGS22

23 Scientific Method COMPARE THE DEPENDENT & INDEPENDENT VARIABLES GUGS23

24 Scientific Method COMPARE THE DEPENDENT & INDEPENDENT VARIABLES. The independent variable is the variable being manipulated/changed. The dependent variable is what you measure in the experiment and what is affected during the experiment. The dependent variable responds to the independent variable GUGS24

25 Scientific Method Choose the arrow on the graduated cylinder to show where the volume reading should be correctly read GUGS25

26 Scientific Method Choose the arrow on the graduated cylinder to show where the volume reading should be correctly read GUGS26 ***************

27 THE METRIC SYSTEM COMPLETE THE FOLLOWING TABLE. MeasurementMetric Unit 1.Length 2.Mass 3.Volume 4.Time 2011.GUGS27

28 THE METRIC SYSTEM COMPLETE THE FOLLOWING TABLE. MeasurementMetric Unit 1.LengthM-meter 2.Massg-gram 3.VolumeL-liter 4.Times-seconds 2011.GUGS28

29 THE METRIC SYSTEM COMPLETE THE FOLLOWING TABLE. Prefix Value (decimal/fraction) 1.Milli 2.Kilo 3.Deci 4.Centi 2011.GUGS29

30 THE METRIC SYSTEM COMPLETE THE FOLLOWING TABLE. Prefix Value (decimal/fraction) 1.Milli1/1000 or Kilo Deci1/10 or Centi1/100 or GUGS30

31 DENSITY STATE THE FORMULA FOR DENSITY GUGS31

32 DENSITY STATE THE FORMULA FOR DENSITY. Density is mass divided by volume: D = m/V 2011.GUGS32

33 DENSITY Calculate the density of an object that has a mass of 7.0 g and a volume of 3.5 mL GUGS33

34 DENSITY Calculate the density of an object that has a mass of 7.0 g and a volume of 3.5 mL. D = m / V D = 7.0 g / 3.5 mL D = 2 g / mL 2011.GUGS34

35 DENSITY WHICH IS MORE DENSE THAN WATER? 2011.GUGS35

36 DENSITY WHICH IS MORE DENSE THAN WATER? 2011.GUGS36 Soda Can Sinks: MORE DENSE THAN WATER!

37 ELEMENTS & USING THE PERIODIC TABLE There are approximately elements GUGS37

38 ELEMENTS & USING THE PERIODIC TABLE There are approximately 114 elements GUGS38

39 ELEMENTS & USING THE PERIODIC TABLE The 3 major types of elements are: 2011.GUGS39

40 ELEMENTS & USING THE PERIODIC TABLE The 3 major types of elements are: Metal, nonmetals, & metalloids GUGS40

41 ELEMENTS & USING THE PERIODIC TABLE List 3 properties of metals GUGS41

42 ELEMENTS & USING THE PERIODIC TABLE List 3 properties of metals. 1.Ductile (can be made into wire) 2.Malleable (can be shaped) 3.Good heat & electricity conductors 2011.GUGS42

43 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS43 What does the number 35 represent?

44 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS44 What does the number 35 represent? Atomic number

45 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS45 What do the letters Br represent?

46 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS46 What do the letters Br represent? The chemical symbol of the element.

47 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS47 What does the number represent?

48 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS48 What does the number represent? Atomic mass

49 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS49 In the periodic table, families are arranged in ____________.

50 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS50 In the periodic table, families are arranged in vertical columns.

51 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS51 In the periodic table, periods are arranged in.

52 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS52 In the periodic table, periods are arranged in horizontal rows.

53 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS53 In the periodic table, there are periods.

54 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS54 In the periodic table, there are 7 periods.

55 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS55 In the periodic table, there are families.

56 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS56 In the periodic table, there are 18 families.

57 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS57 The chemical properties of an element relate most closely to the element’s.

58 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS58 The chemical properties of an element relate most closely to the element’s electronic structure.

59 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS59 Complete the table: GroupFamily Name

60 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS60 Complete the table: GroupFamily Name 1Alkali metals

61 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS61 Complete the table: GroupFamily Name 1Alkali metals 2Alkaline earth metals 17 18

62 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS62 Complete the table: GroupFamily Name 1Alkali metals 2Alkaline earth metals 17Halogens 18

63 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS63 Complete the table: GroupFamily Name 1Alkali metals 2Alkaline earth metals 17Halogens 18Noble gases

64 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS64 Complete the table: ElementFamily Name Li Ba I Ne

65 ELEMENTS & USING THE PERIODIC TABLE 2011.GUGS65 Complete the table: ElementFamily Name LiAlkali metals BaAlkaline earth metals IHalogens NeNoble gases

66 ELEMENTS & USING THE PERIODIC TABLE An element’s identity is based on it’s ________ GUGS66

67 ELEMENTS & USING THE PERIODIC TABLE An element’s identity is based on it’s atomic number GUGS67

68 ELEMENTS & USING THE PERIODIC TABLE Identify the element which has an atomic number of GUGS68

69 ELEMENTS & USING THE PERIODIC TABLE Identify the element which has an atomic number of 6. Carbon GUGS69

70 ELEMENTS & USING THE PERIODIC TABLE Identify the element which has an atomic number of GUGS70

71 ELEMENTS & USING THE PERIODIC TABLE Identify the element which has an atomic number of 16. Sulfur GUGS71

72 ELEMENTS & USING THE PERIODIC TABLE Identify the element that has the symbol Fe GUGS72

73 ELEMENTS & USING THE PERIODIC TABLE Identify the element that has the symbol Fe. Iron GUGS73

74 ELEMENTS & USING THE PERIODIC TABLE Identify the element that has the symbol K GUGS74

75 ELEMENTS & USING THE PERIODIC TABLE Identify the element that has the symbol K. Potassium GUGS75

76 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS76 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L M8035

77 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS77 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L M8035

78 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS78 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L = M8035

79 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS79 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L = = -2 M8035

80 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS80 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L = = -2 M358035

81 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS81 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L = = -2 M = 45

82 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS82 IsotopeAtomic # Mass # # of protons # of neutrons # of electrons charge L = = -2 M = = 36

83 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS83 AtomMetal or Nonmetal? Cation or Anion? Gains or loses electrons? # of electrons gained or lost Ion formed Sodium, Na Na + Sulfur, S S 2- Magnesium, Mg Mg 2+ Aluminum, Al Al 3+

84 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS84 AtomMetal or Nonmetal? Cation or Anion? Gains or loses electrons? # of electrons gained or lost Ion formed Sodium, NaMetalCationLoses1 lost Na + Sulfur, S S 2- Magnesium, Mg Mg 2+ Aluminum, Al Al 3+

85 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS85 AtomMetal or Nonmetal? Cation or Anion? Gains or loses electrons? # of electrons gained or lost Ion formed Sodium, NaMetalCationLoses1 lost Na + Sulfur, SNonmetalAnionGains2 gained S 2- Magnesium, Mg Mg 2+ Aluminum, Al Al 3+

86 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS86 AtomMetal or Nonmetal? Cation or Anion? Gains or loses electrons? # of electrons gained or lost Ion formed Sodium, NaMetalCationLoses1 lost Na + Sulfur, SNonmetalAnionGains2 gained S 2- Magnesium, Mg MetalCationLoses2 lost Mg 2+ Aluminum, Al Al 3+

87 ELEMENTS & USING THE PERIODIC TABLE Complete the table: 2011.GUGS87 AtomMetal or Nonmetal? Cation or Anion? Gains or loses electrons? # of electrons gained or lost Ion formed Sodium, NaMetalCationLoses1 lost Na + Sulfur, SNonmetalAnionGains2 gained S 2- Magnesium, Mg MetalCationLoses2 lost Mg 2+ Aluminum, Al MetalCationLoses3 lost Al 3+

88 FORMULAS & NAMES OF IONIC COMPOUNDS Complete the table: 2011.GUGS88 ElementCation formula ElementAnion formula Compound formula Name CalciumNitrogen SodiumSulfur Aluminu m Fluorine

89 FORMULAS & NAMES OF IONIC COMPOUNDS Complete the table: 2011.GUGS89 ElementCation formula ElementAnion formula Compound formula Name Calcium Ca 2+ Nitrogen N 3- Ca 3 N 2 Calcium nitride SodiumSulfur Aluminu m Fluorine

90 FORMULAS & NAMES OF IONIC COMPOUNDS Complete the table: 2011.GUGS90 ElementCation formula ElementAnion formula Compound formula Name Calcium Ca 2+ Nitrogen N 3- Ca 3 N 2 Calcium nitride Sodium Na + Sulfur S-S- Na 2 S Sodium sulfide Aluminu m Fluorine

91 FORMULAS & NAMES OF IONIC COMPOUNDS Complete the table: 2011.GUGS91 ElementCation formula ElementAnion formula Cmpd formula Name Calcium Ca 2+ Nitrogen N 3- Ca 3 N 2 Calcium nitride Sodium Na + Sulfur S-S- Na 2 S Sodium sulfide Aluminu m Al 3+ Fluorine F-F- AlF 3 Aluminum fluoride

92 FORMULAS & NAMES OF IONIC COMPOUNDS Write the formula for magnesium hydroxide: 2011.GUGS92

93 FORMULAS & NAMES OF IONIC COMPOUNDS Write the formula for magnesium hydroxide: Mg(OH) GUGS93

94 FORMULAS & NAMES OF IONIC COMPOUNDS How many oxygen atoms are in the chemical formula Ba 3 (PO 4 ) 2 ? 2011.GUGS94

95 FORMULAS & NAMES OF IONIC COMPOUNDS Write the formula for barium phosphate: Ba 3 (PO 4 ) GUGS95

96 FORMULAS & NAMES OF IONIC COMPOUNDS How many oxygen atoms are in the chemical formula Ba 3 (PO 4 ) 2 ? 2 X 4 = GUGS96

97 WATER & THE HYDROLOGIC CYCLE What is the difference between direct and indirect water use? 2011.GUGS97

98 WATER & THE HYDROLOGIC CYCLE What is the difference between direct and indirect water use? Direct water use is when you turn on a tap and water comes out– for example: Drinking a glass of water/cooking with water, showering. Indirect water use is when you use a product or service that required water to be used for its production, or water use that you aren't readily aware of, for example: water used in the production of electricity GUGS98

99 WATER & THE HYDROLOGIC CYCLE List 4 ways you can conserve water: 2011.GUGS99

100 WATER & THE HYDROLOGIC CYCLE List 4 ways you can conserve water: 2011.GUGS100

101 WATER & THE HYDROLOGIC CYCLE List & describe the processes (steps) in the hydrologic cycle GUGS101

102 WATER & THE HYDROLOGIC CYCLE List the processes (steps) in the hydrologic cycle. 1. Condensation: when warm air collides with cold air and droplets form. 2. Precipitation: droplets that after being condensed begin to fall to the earth in the form of rain, sleet, hail, glaze, or snow. 3. Erosion: the movement of soil by wind or water. 4. Melting: when a solid changes into a liquid. 5. Percolation: the movement of water through the soil. 6. Evaporation: The process of liquid water becoming vapor GUGS102

103 2011.GUGS103 The Hydrologic Cycle: Insert the following terms In the diagram: Evaporation Respiration Transpiration Precipitation Runoff Condensation

104 2011.GUGS104 The Hydrologic Cycle: Insert the following terms In the diagram: Evaporation Respiration Transpiration Precipitation Runoff Condensation

105 WATER & THE HYDROLOGIC CYCLE Huge underground storehouses of water made rock, sand, or gravel are known as ____________ GUGS105

106 WATER & THE HYDROLOGIC CYCLE Huge underground storehouses of water made rock, sand, or gravel are known as aquifers GUGS106

107 SOLUTIONS & SOLUBILITY Define: 1.Solute: 2.Solvent: 2011.GUGS107

108 SOLUTIONS & SOLUBILITY Define: 1.Solute: A substance dissolved in another substance, usually the component of a solution present in the lesser amount. 2.Solvent: 2011.GUGS108

109 SOLUTIONS & SOLUBILITY Define: 1.Solute: A substance dissolved in another substance, usually the component of a solution present in the lesser amount. 2.Solvent: a substance that dissolves another to form a solution; usually the component of a solution present in the greater amount GUGS109

110 SOLUTIONS & SOLUBILITY Define the following: 1.Unsaturated 2.Saturated 3.Supersaturated 4.Electrolyte 2011.GUGS110

111 SOLUTIONS & SOLUBILITY Define the following: 1.Unsaturated: a solution that has LESS than the maximum amount of solute. 2.Saturated 3.Supersaturated 4.Electrolyte 2011.GUGS111

112 SOLUTIONS & SOLUBILITY Define the following: 1.Unsaturated: a solution that has LESS than the maximum amount of solute. 2.Saturated: a solution that has exactly the maximum amount of solute. 3.Supersaturated: 4.Electrolyte: 2011.GUGS112

113 SOLUTIONS & SOLUBILITY Define the following: 1.Unsaturated: a solution that has LESS than the maximum amount of solute. 2.Saturated: a solution that has exactly the maximum amount of solute. 3.Supersaturated: a solution that has MORE than the maximum amount of solute. 4.Electrolyte: 2011.GUGS113

114 SOLUTIONS & SOLUBILITY Define the following: 1.Unsaturated: a solution that has LESS than the maximum amount of solute. 2.Saturated: a solution that has exactly the maximum amount of solute. 3.Supersaturated: a solution that has MORE than the maximum amount of solute. 4.Electrolyte: material containing free ions that can conduct an electrical current. Most electrolytes consist of ions in solution, and they are referred to as ionic solutions GUGS114

115 SOLUTIONS & SOLUBILITY If the temperature of a solution with a gaseous solute increases, the solubility ______________ GUGS115

116 SOLUTIONS & SOLUBILITY If the temperature of a solution with a gaseous solute increases, the solubility decreases GUGS116

117 SOLUTIONS & SOLUBILITY If the temperature of a solution with a solids solute increases, the solubility ________________ GUGS117

118 SOLUTIONS & SOLUBILITY If the temperature of a solution with a solids solute increases, the solubility increases GUGS118

119 SOLUTIONS & SOLUBILITY Explain why water is known as the universal solvent GUGS119

120 SOLUTIONS & SOLUBILITY Explain why water is known as the universal solvent. Solutes for the most part are able to dissolve in water with the exception of some solutes like oil GUGS120

121 SOLUTIONS & SOLUBILITY Explain what is meant by a polar molecule. Give an example GUGS121

122 SOLUTIONS & SOLUBILITY Explain what is meant by a polar molecule. Give an example. A molecule that is positively charged on one end & negatively charged on the other end. Water is a polar molecule GUGS122

123 SOLUTIONS & SOLUBILITY Explain why water and oil do not mix GUGS123

124 SOLUTIONS & SOLUBILITY Explain why water and oil do not mix. Water is polar & oil is non polar GUGS124

125 SOLUTIONS & SOLUBILITY Explain how water dissolves ionic compounds GUGS125

126 SOLUTIONS & SOLUBILITY Explain how water dissolves ionic compounds. Polar water molecules attract ions & pull the ionic compound apart GUGS126

127 SOLUTIONS & SOLUBILITY COMPLETE THE TABLE: 2011.GUGS127 SOLUTESOLUBLE IN WATER? SOLUBLE IN MINERAL OIL? POLAR OR NON POLAR? 1YESNO 2 YES 3 NO

128 SOLUTIONS & SOLUBILITY COMPLETE THE TABLE: 2011.GUGS128 SOLUTESOLUBLE IN WATER? SOLUBLE IN MINERAL OIL? POLAR OR NON POLAR? 1YESNOPOLAR 2NOYESNON POLAR 3YESNOPOLAR

129 SOLUTIONS & SOLUBILITY: PROPERTIES OF SOLIDS COMPLETE THE TABLE: 2011.GUGS129 SOLUTEDISSOLVES IN WATER? CONDUCTS ELECTRICITY IN WATER? IONIC OR MOLECULAR SOLUTE? 1YESNO 2YES 3NO

130 SOLUTIONS & SOLUBILITY: PROPERTIES OF SOLIDS COMPLETE THE TABLE: 2011.GUGS130 SOLUTEDISSOLVES IN WATER? CONDUCTS ELECTRICITY IN WATER? IONIC OR MOLECULAR SOLUTE? 1YESNOMOLECULAR 2YES 3NO

131 SOLUTIONS & SOLUBILITY: PROPERTIES OF SOLIDS COMPLETE THE TABLE: 2011.GUGS131 SOLUTEDISSOLVES IN WATER? CONDUCTS ELECTRICITY IN WATER? IONIC OR MOLECULAR SOLUTE? 1YESNOMOLECULAR 2YES IONIC 3NO

132 SOLUTIONS & SOLUBILITY: PROPERTIES OF SOLIDS COMPLETE THE TABLE: 2011.GUGS132 SOLUTEDISSOLVES IN WATER? CONDUCTS ELECTRICITY IN WATER? IONIC OR MOLECULAR SOLUTE? 1YESNOMOLECULAR 2YES IONIC 3NO MOLECULAR

133 SOLUTIONS & SOLUBILITY 2011.GUGS133 Using the graph, what is the solubility of potassium chloride (KCl) at 80 o C?

134 SOLUTIONS & SOLUBILITY 2011.GUGS134 Using the graph, what is the solubility of potassium chloride (KCl) at 80 o C? 50 grams

135 SOLUTIONS & SOLUBILITY 2011.GUGS135 Using the graph, what is the solubility of Ammonia (NH 3 ) at 20 o C?

136 SOLUTIONS & SOLUBILITY 2011.GUGS136 Using the graph, what is the solubility of Ammonia (NH 3 ) at 20 o C? 52 grams

137 SOLUTIONS & SOLUBILITY 2011.GUGS137 Using the graph, what temperature is need to dissolve 10 grams of potassium chlorate, KClO 3 in 100 grams of water?

138 SOLUTIONS & SOLUBILITY 2011.GUGS138 Using the graph, what temperature is need to dissolve 10 grams of potassium chlorate, KClO 3 in 100 grams of water? 20 o C

139 pH Complete the table GUGS139 pHAcidic, basic, or neutral?

140 pH Complete the table GUGS140 pHAcidic, basic, or neutral? 1acidic 5 7neutral 9basic 13basic

141 pH An example of a substance that is basic is GUGS141

142 pH An example of a substance that is acidic is GUGS142

143 pH An example of a substance that is neutral is GUGS143


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