Chem
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SCIENCE III (Chemistry) Third Year At the end of the third year Science Program, the learner shall have developed the following competencies: I.
Introduction
1.
Appreciate the importance of Chemistry to daily life 1.1 1.2 1.3 1.4
2.
Appreciate the achievements of Filipino and foreign scientists in the development of chemistry and related technology 2.1 2.2 2.3 2.4
3.
Discuss researches conducted by Filipino scientists which find applications in chemistry Cite contributions of Filipino and foreign scientists in the field of chemical technology Express one’s feelings for the significance of the contributions of scientists in chemistry and related field Identify the values and traits demonstrated by the above scientists
Appreciate and understand the uses of the different apparatus used in a chemistry laboratory 3.1 3.2 3.3
4.
Relate the importance of Chemistry to daily life Describe the role of Chemistry in society and industry Cite contributions of Chemistry to other sciences like medicine, nursing, nutrition, psychology, etc. Explain the different tasks of a chemist
Give the uses of some important apparatus used in chemistry laboratory Explain the safety precautions to be observed in a chemistry laboratory Observe wise use of apparatus in the laboratory
Demonstrate understanding of mathematical concepts in chemistry 4.1 4.2 4.3 4.4
Recognize the importance of significant figures in scientific calculations Identify the different mathematical concepts involved in solving problems using scientific notation Solve problems involving conversions in length, volume, temperature, pressure, etc. Explain the basic concept of a mole II.
Classifying Matter
1. Demonstrate skill in identifying chemical systems and classification of matter
13
1.1 1.2 1.3 1.4 1.5 1.6 1.7 2.
Differentiate between homogenous and heterogeneous systems Discuss pure substances and mixtures Describe three (3) types of mixtures Differentiate between elements and compounds in an operational manner Classify elements as metals or non-metals based on their properties Detect compounds whether acids, bases and salts, using indicators Group compounds into organic and inorganic substances using formulas
Demonstrate understanding of elements and compounds present in daily life 2.1 Discuss elements and compounds which are basic to our daily existence like building components of teeth and bones; food preparations and medicines 2.2 Identify elements and compounds used in industries which are vital to the national economy
3. Demonstrate knowledge of simple techniques in preparing, separating and purifying matter 3.1 3.2 3.3 3.4 III.
Discuss different methods of separating mixtures Prepare useful mixtures from easily available resources in the community Separate the components of a mixture Recover useful chemicals/materials as a result of the separation of mixtures Solutions
1. Demonstrate understanding of solutions 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
Identify types of solutions Describe the changes that occur in the dissolving process substances Relate the changes that accompany this process to energy changes and molecular interactions Enumerate and explain the difference among saturated, unsaturated and supersaturated solutions Explain the factors affecting solubility State and explain the colligative properties of a solution Identify the relationship of the mole concept to concentration of solutions Solve problems on solution concentrations (% by volume & molarity)
2. Understand solutions at work in the natural environment
14
2.1 Apply knowledge of the importance of colligative properties of solutions to daily living 2.2 Relate solutions to water pollution caused by toxic substances dissolved in water (heavy metals, pesticides, detergents) 2.3 Explain the importance of electrolyte balance in the body IV.
Colloids
1. Demonstrate understanding of the properties, preparations and uses of colloids 1.1 Classify colloids 1.2 Relate the properties of colloids to their behavior 1.3 Discuss the methods and principles applied in purifying colloids as in dialysis 1.4 Prepare useful colloids 3. Appreciate the importance of colloids in daily life 3.1 3.2 3.3 3.4 V.
Explain how the properties of colloids are utilized in technology Evaluate the importance of colloids to daily life Describe the biological and environmental impact of colloids like aerosols sprays, hair gel and smoke Relate the property of gas mixtures to air pollution
Gases 1.
Demonstrate understanding of the behavior of gases 1.1 Explain the properties and behavior of gases based on kinetic molecular theory 1.2 State the relationship among molecular interactions and phases of matter 1.3 Compare the diffusion of gases at standard pressure and temperature 1.4 Infer the relationship between the rate of diffusion and the molecular mass of a substance 1.5 Derive from given data the relationship between volume and pressure of a confined gas at constant temperature 1.6 Derive from given data the relationship between volume and temperature of a confined gas at constant pressure 1.7 Relate the concept of mole to volume of gases 1.8 Define the variables that describe the state of a gas (V, P, T, n….)
2. Demonstrate problem solving skills using mathematical calculations 2.1 3.
Solve problems involving Boyle’s, Charles’, Avogadro’s, and Dalton’s law of partial pressure
Understand gas laws and principles involved in some technologies 3.1 Cite safety measures to be observed in storing gases and volatile liquids 15
3.2 Apply gas laws in explaining daily occurrences 3.3 Enumerate and explain some technologies such as pressure cooker, bicycle pump, etc. (apply the KMT to explain some technology such as pressure cooker, bicycle pump, etc.) 3.4 Relate the properties of gases to air pollution VI.
Inside the Atom 1. Appreciate the contributions of early scientists in the development of theory
atomic
1.1 Recognize the significance of the contributions of early scientists in the development particularly the Laws of Conservation of Mass, Definite Composition and Multiple Proportion 1.2 Explain how radioactive elements are utilized in the diagnosis/treatment of diseases, the risks involved and the methods of protection 2. Demonstrate understanding of the structure of the atom 2.1 Explain Dalton’s atomic theory 2.2 Explain the law of chemical changes in terms of Dalton’s atomic theory 2.3 Analyze what cathode rays and radioactivity reveal about the atom 2.4 Explain Rutherford’s experiment to confirm the existence of the nucleus 2.5 Name and describe the sub atomic particles 2.6 Determine the number of protons, number of neutrons and number of electrons in an atom/ion 2.7 Relate atomic mass to the relative abundance of isotopes 2.8 Explain how the emission spectra of elements provide evidence for the existence of energy levels, and that electrons have definite energy levels 2.9 Describe the reactivity of the atom in terms of its valence electrons VII.
Order among Elements 1. Demonstrate understanding of the properties of elements based on periodic atomic properties 1.1 Name the elements given the chemical symbol 1.2 State the basis of the arrangement of elements in the periodic table 1.3 Use the periodic table to predict the chemical behavior of an element 1.4 Relate the number of valence electrons of elements to their group number in the periodic table 1.5 Infer trends in atomic sizes, ionization energy, metallic and nonmetallic properties and electronegativity across the period and down the family 2. Appreciate the importance of knowing the properties of elements and how they are used in technology 2.1 Enumerate and describe the properties of elements and their uses
16
2.2 Explain the importance of knowing the properties of elements and how they are applied particularly in modern technologies and those concerning the environment 2.3 Discuss the importance of some alkali metals, alkaline earth metals and transition metals in the human body VIII.
Ties That Chemically Bind
1.
Understand how atoms combine 1.1 1.2 1.3 1.4 1.5 1.6 1.7
2.
Illustrate the formation of ionic, covalent and metallic bonds Relate the type of bond formed between two or three elements to their location in the periodic table Deduce which atoms tend to form covalent bonds or ionic bonds given the electronegativity values of the elements Write formulas of covalent and ionic compounds Distinguish between molecular and empirical formulas Compare and contrast polar and non polar covalent bonds Enumerate and explain the forces of attraction that exists between molecules
Demonstrate understanding of chemical bonds and how they relate to the properties and uses of compounds Discuss the biological importance of certain ions to the human body and in the environment 2.2 Relate the properties of metals to the type of bond formed 2.1
IX.
Changes in Matter
1.
Appreciate the practical applications of phase/chemical changes 1.1 Explain the application of phase/chemical changes used at home, in the community and industry 1.2 Recognize the importance of these applications in technologies that help improve the quality of life 1.3 Evaluate evidences of chemical changes
2.
Demonstrate understanding of the laws governing chemical changes 2.1 Convert number of moles to mass or vice versa and to the number of particles (atoms, ions, molecules) or vice versa 2.2 Derive the chemical formula of a compound, given the mass ratio and the atomic masses of the elements present 2.3 Explain the Law of Conservation of Mass 2.4 Determine the percentage composition of a compound
3.
Demonstrate the ability to use symbols, formulas and chemical equations in explaining chemical equations 3.1
Discuss the four general types of chemical reactions
17
3.2 Explain the implied information derived from a balanced equation 3.3 Classify chemical reactions given balanced chemical equation 3.4 Identify chemical equations involved in chemical processes as in soap making and car batteries X.
Change, Energy and Time 1.
Demonstrate understanding of how chemical reactions occur 1.1 1.2 1.3
2.
Differentiate exothermic from endothermic reactions Enumerate and explain the factors affecting rates of chemical reactions Describe chemical reactions taking place in the decay of foods, growth of plants, digestion of foods, etc.
Appreciate the importance of controlling rates of reactions in technology 2.1 Explain the application of Heats of Reactions to commercial and industrial processes 2.4 Explain how the factors affecting rates of chemical reactions are applied in food preservation, control of fire, pollution, corrosion and materials production 2.5 Recognize the importance of controlling rates of reactions in technology
18
Introduction
1.
Appreciate the importance of Chemistry to daily life 1.1 1.2 1.3 1.4
2.
Appreciate the achievements of Filipino and foreign scientists in the development of chemistry and related technology 2.1 2.2 2.3 2.4
3.
Discuss researches conducted by Filipino scientists which find applications in chemistry Cite contributions of Filipino and foreign scientists in the field of chemical technology Express one’s feelings for the significance of the contributions of scientists in chemistry and related field Identify the values and traits demonstrated by the above scientists
Appreciate and understand the uses of the different apparatus used in a chemistry laboratory 3.1 3.2 3.3
4.
Relate the importance of Chemistry to daily life Describe the role of Chemistry in society and industry Cite contributions of Chemistry to other sciences like medicine, nursing, nutrition, psychology, etc. Explain the different tasks of a chemist
Give the uses of some important apparatus used in chemistry laboratory Explain the safety precautions to be observed in a chemistry laboratory Observe wise use of apparatus in the laboratory
Demonstrate understanding of mathematical concepts in chemistry 4.1 4.2 4.3 4.4
Recognize the importance of significant figures in scientific calculations Identify the different mathematical concepts involved in solving problems using scientific notation Solve problems involving conversions in length, volume, temperature, pressure, etc. Explain the basic concept of a mole II.
Classifying Matter
1. Demonstrate skill in identifying chemical systems and classification of matter
13
1.1 1.2 1.3 1.4 1.5 1.6 1.7 2.
Differentiate between homogenous and heterogeneous systems Discuss pure substances and mixtures Describe three (3) types of mixtures Differentiate between elements and compounds in an operational manner Classify elements as metals or non-metals based on their properties Detect compounds whether acids, bases and salts, using indicators Group compounds into organic and inorganic substances using formulas
Demonstrate understanding of elements and compounds present in daily life 2.1 Discuss elements and compounds which are basic to our daily existence like building components of teeth and bones; food preparations and medicines 2.2 Identify elements and compounds used in industries which are vital to the national economy
3. Demonstrate knowledge of simple techniques in preparing, separating and purifying matter 3.1 3.2 3.3 3.4 III.
Discuss different methods of separating mixtures Prepare useful mixtures from easily available resources in the community Separate the components of a mixture Recover useful chemicals/materials as a result of the separation of mixtures Solutions
1. Demonstrate understanding of solutions 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
Identify types of solutions Describe the changes that occur in the dissolving process substances Relate the changes that accompany this process to energy changes and molecular interactions Enumerate and explain the difference among saturated, unsaturated and supersaturated solutions Explain the factors affecting solubility State and explain the colligative properties of a solution Identify the relationship of the mole concept to concentration of solutions Solve problems on solution concentrations (% by volume & molarity)
2. Understand solutions at work in the natural environment
14
2.1 Apply knowledge of the importance of colligative properties of solutions to daily living 2.2 Relate solutions to water pollution caused by toxic substances dissolved in water (heavy metals, pesticides, detergents) 2.3 Explain the importance of electrolyte balance in the body IV.
Colloids
1. Demonstrate understanding of the properties, preparations and uses of colloids 1.1 Classify colloids 1.2 Relate the properties of colloids to their behavior 1.3 Discuss the methods and principles applied in purifying colloids as in dialysis 1.4 Prepare useful colloids 3. Appreciate the importance of colloids in daily life 3.1 3.2 3.3 3.4 V.
Explain how the properties of colloids are utilized in technology Evaluate the importance of colloids to daily life Describe the biological and environmental impact of colloids like aerosols sprays, hair gel and smoke Relate the property of gas mixtures to air pollution
Gases 1.
Demonstrate understanding of the behavior of gases 1.1 Explain the properties and behavior of gases based on kinetic molecular theory 1.2 State the relationship among molecular interactions and phases of matter 1.3 Compare the diffusion of gases at standard pressure and temperature 1.4 Infer the relationship between the rate of diffusion and the molecular mass of a substance 1.5 Derive from given data the relationship between volume and pressure of a confined gas at constant temperature 1.6 Derive from given data the relationship between volume and temperature of a confined gas at constant pressure 1.7 Relate the concept of mole to volume of gases 1.8 Define the variables that describe the state of a gas (V, P, T, n….)
2. Demonstrate problem solving skills using mathematical calculations 2.1 3.
Solve problems involving Boyle’s, Charles’, Avogadro’s, and Dalton’s law of partial pressure
Understand gas laws and principles involved in some technologies 3.1 Cite safety measures to be observed in storing gases and volatile liquids 15
3.2 Apply gas laws in explaining daily occurrences 3.3 Enumerate and explain some technologies such as pressure cooker, bicycle pump, etc. (apply the KMT to explain some technology such as pressure cooker, bicycle pump, etc.) 3.4 Relate the properties of gases to air pollution VI.
Inside the Atom 1. Appreciate the contributions of early scientists in the development of theory
atomic
1.1 Recognize the significance of the contributions of early scientists in the development particularly the Laws of Conservation of Mass, Definite Composition and Multiple Proportion 1.2 Explain how radioactive elements are utilized in the diagnosis/treatment of diseases, the risks involved and the methods of protection 2. Demonstrate understanding of the structure of the atom 2.1 Explain Dalton’s atomic theory 2.2 Explain the law of chemical changes in terms of Dalton’s atomic theory 2.3 Analyze what cathode rays and radioactivity reveal about the atom 2.4 Explain Rutherford’s experiment to confirm the existence of the nucleus 2.5 Name and describe the sub atomic particles 2.6 Determine the number of protons, number of neutrons and number of electrons in an atom/ion 2.7 Relate atomic mass to the relative abundance of isotopes 2.8 Explain how the emission spectra of elements provide evidence for the existence of energy levels, and that electrons have definite energy levels 2.9 Describe the reactivity of the atom in terms of its valence electrons VII.
Order among Elements 1. Demonstrate understanding of the properties of elements based on periodic atomic properties 1.1 Name the elements given the chemical symbol 1.2 State the basis of the arrangement of elements in the periodic table 1.3 Use the periodic table to predict the chemical behavior of an element 1.4 Relate the number of valence electrons of elements to their group number in the periodic table 1.5 Infer trends in atomic sizes, ionization energy, metallic and nonmetallic properties and electronegativity across the period and down the family 2. Appreciate the importance of knowing the properties of elements and how they are used in technology 2.1 Enumerate and describe the properties of elements and their uses
16
2.2 Explain the importance of knowing the properties of elements and how they are applied particularly in modern technologies and those concerning the environment 2.3 Discuss the importance of some alkali metals, alkaline earth metals and transition metals in the human body VIII.
Ties That Chemically Bind
1.
Understand how atoms combine 1.1 1.2 1.3 1.4 1.5 1.6 1.7
2.
Illustrate the formation of ionic, covalent and metallic bonds Relate the type of bond formed between two or three elements to their location in the periodic table Deduce which atoms tend to form covalent bonds or ionic bonds given the electronegativity values of the elements Write formulas of covalent and ionic compounds Distinguish between molecular and empirical formulas Compare and contrast polar and non polar covalent bonds Enumerate and explain the forces of attraction that exists between molecules
Demonstrate understanding of chemical bonds and how they relate to the properties and uses of compounds Discuss the biological importance of certain ions to the human body and in the environment 2.2 Relate the properties of metals to the type of bond formed 2.1
IX.
Changes in Matter
1.
Appreciate the practical applications of phase/chemical changes 1.1 Explain the application of phase/chemical changes used at home, in the community and industry 1.2 Recognize the importance of these applications in technologies that help improve the quality of life 1.3 Evaluate evidences of chemical changes
2.
Demonstrate understanding of the laws governing chemical changes 2.1 Convert number of moles to mass or vice versa and to the number of particles (atoms, ions, molecules) or vice versa 2.2 Derive the chemical formula of a compound, given the mass ratio and the atomic masses of the elements present 2.3 Explain the Law of Conservation of Mass 2.4 Determine the percentage composition of a compound
3.
Demonstrate the ability to use symbols, formulas and chemical equations in explaining chemical equations 3.1
Discuss the four general types of chemical reactions
17
3.2 Explain the implied information derived from a balanced equation 3.3 Classify chemical reactions given balanced chemical equation 3.4 Identify chemical equations involved in chemical processes as in soap making and car batteries X.
Change, Energy and Time 1.
Demonstrate understanding of how chemical reactions occur 1.1 1.2 1.3
2.
Differentiate exothermic from endothermic reactions Enumerate and explain the factors affecting rates of chemical reactions Describe chemical reactions taking place in the decay of foods, growth of plants, digestion of foods, etc.
Appreciate the importance of controlling rates of reactions in technology 2.1 Explain the application of Heats of Reactions to commercial and industrial processes 2.4 Explain how the factors affecting rates of chemical reactions are applied in food preservation, control of fire, pollution, corrosion and materials production 2.5 Recognize the importance of controlling rates of reactions in technology
18
