Making Connections - SCH4U1-CCVI
... ∆Hºuniverse = __________________________________________ In a chemical reaction, the PE of the reactants and products results in the transfer of energy from the: 1) surroundings to the chemical system (ENDO) 2) chemical system to the surroundings (EXO) Enthalpy changes and Spontaneity Bond energy ...
... ∆Hºuniverse = __________________________________________ In a chemical reaction, the PE of the reactants and products results in the transfer of energy from the: 1) surroundings to the chemical system (ENDO) 2) chemical system to the surroundings (EXO) Enthalpy changes and Spontaneity Bond energy ...
1 - Cathedral High School
... 3.2.1 Describe and explain the periodic trends in atomic radii, ionic radii, ionization energies, electronegativity and melting points for the alkali metals (Li Cs), halogens (F I) and period 3 elements (Na Ar). Cross reference with topics 2, 4 and 5. Data for all these properties are listed i ...
... 3.2.1 Describe and explain the periodic trends in atomic radii, ionic radii, ionization energies, electronegativity and melting points for the alkali metals (Li Cs), halogens (F I) and period 3 elements (Na Ar). Cross reference with topics 2, 4 and 5. Data for all these properties are listed i ...
File
... Bond energy is the energy required to break a chemical bond. The stronger the bond, the greater the energy needed to break it. Forming bonds between atoms or ions releases energy, making it an exothermic process. bonded particles → separated particles + energy ...
... Bond energy is the energy required to break a chemical bond. The stronger the bond, the greater the energy needed to break it. Forming bonds between atoms or ions releases energy, making it an exothermic process. bonded particles → separated particles + energy ...
History of the Atom Reading and Questions
... scientific research he conducted. The main points of Dalton’s atomic theory are shown below. ...
... scientific research he conducted. The main points of Dalton’s atomic theory are shown below. ...
Lab Stuff
... 1. Ionic compounds form when atoms gain or lose electrons. Metals lose electrons, nonmetals gain them. 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electr ...
... 1. Ionic compounds form when atoms gain or lose electrons. Metals lose electrons, nonmetals gain them. 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electr ...
SIA Chapter 12 Atoms PP
... emitted by elements when they are made to glow— identifies each element by its characteristic pattern • Each element emits a distinctive glow when energized and displays a ...
... emitted by elements when they are made to glow— identifies each element by its characteristic pattern • Each element emits a distinctive glow when energized and displays a ...
zum_ic6e_ch04_lecture_ppt_23
... of any other element. – Carbon atoms have different chemical and physical properties than sulfur atoms. ...
... of any other element. – Carbon atoms have different chemical and physical properties than sulfur atoms. ...
Chemical Bonding Short Notes
... The overlap of atomic orbitals is given by the following postulates: •The atoms which unite to form a molecule completely retain their identities in the resulting molecule. •The formation of a covalent bond is due to overlap of atomic orbitals . •If the two atoms, each having on unpaired electron, ...
... The overlap of atomic orbitals is given by the following postulates: •The atoms which unite to form a molecule completely retain their identities in the resulting molecule. •The formation of a covalent bond is due to overlap of atomic orbitals . •If the two atoms, each having on unpaired electron, ...
Notebook LAyout for Atoms Unit- Page 46+
... Mrs. Aguirre’s Webpage: http://www.quia.com/profiles/caguirre ...
... Mrs. Aguirre’s Webpage: http://www.quia.com/profiles/caguirre ...
Electron Configurations
... The Photoelectric Effect – refers to the emission of electrons from a metal when light shines on the metal. The wave theory of light (early 1900) could not explain this phenomenon. For a given metal, no electrons were emitted if the light’s frequency was below a certain minimum – regardless of how ...
... The Photoelectric Effect – refers to the emission of electrons from a metal when light shines on the metal. The wave theory of light (early 1900) could not explain this phenomenon. For a given metal, no electrons were emitted if the light’s frequency was below a certain minimum – regardless of how ...
PPT of Notes
... nuclides or as percentages of nuclides) A “rough estimate” may be obtained if the mass numbers are utilized ...
... nuclides or as percentages of nuclides) A “rough estimate” may be obtained if the mass numbers are utilized ...
Lab Stuff:
... 1. Ionic compounds form when atoms gain or lose electrons. Metals lose electrons, nonmetals gain them. 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electr ...
... 1. Ionic compounds form when atoms gain or lose electrons. Metals lose electrons, nonmetals gain them. 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electr ...
chapt02_chem
... saturated - carbon atoms saturated with hydrogen unsaturated - contains C=C bonds without hydrogen polyunsaturated – contains many C=C bonds essential fatty acids – obtained from diet, body can not synthesize Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
... saturated - carbon atoms saturated with hydrogen unsaturated - contains C=C bonds without hydrogen polyunsaturated – contains many C=C bonds essential fatty acids – obtained from diet, body can not synthesize Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
AP_chemistry_Summer_Assignment_2014
... 20.Determine number of protons and neutrons in each of the following. a. K1939 ...
... 20.Determine number of protons and neutrons in each of the following. a. K1939 ...
The Structure of an Atom
... Dalton’s Atomic Theory • All matter is composed of extremely small particles called atoms. • All atoms of a given element are identical. • Atoms cannot be created, divided into smaller particles, or destroyed. (This part proven wrong) • Different atoms combine in simple whole number ratios to form ...
... Dalton’s Atomic Theory • All matter is composed of extremely small particles called atoms. • All atoms of a given element are identical. • Atoms cannot be created, divided into smaller particles, or destroyed. (This part proven wrong) • Different atoms combine in simple whole number ratios to form ...
Practice Test Packet
... [C] the identity of the central atom in the molecule [D] the ability of the molecule to change atomic orientation [E] none of these 30. The pH of a 1.0 M sodium acetate solution is: [A] 7.0 [B] less than 7.0 [C] not enough information is given [D] greater than 7.0 [E] none of these (a-d) 31. A weak ...
... [C] the identity of the central atom in the molecule [D] the ability of the molecule to change atomic orientation [E] none of these 30. The pH of a 1.0 M sodium acetate solution is: [A] 7.0 [B] less than 7.0 [C] not enough information is given [D] greater than 7.0 [E] none of these (a-d) 31. A weak ...
Structure of the atom
... • Today’s atomic model is based on the principles of wave mechanics, which involve complex mathematical ...
... • Today’s atomic model is based on the principles of wave mechanics, which involve complex mathematical ...
GC-Final-Review-2014
... a. electrons are shared equally b. shares 2 electrons c. overlapping of p orbitals d. more than 1 way of drawing Lewis Structure e. metal transfers electron(s) to nonmetal f. sharing 4 or 6 electrons to complete octets g. atoms are surrounded by 8 valence electrons h. nonmetal shares electrons with ...
... a. electrons are shared equally b. shares 2 electrons c. overlapping of p orbitals d. more than 1 way of drawing Lewis Structure e. metal transfers electron(s) to nonmetal f. sharing 4 or 6 electrons to complete octets g. atoms are surrounded by 8 valence electrons h. nonmetal shares electrons with ...
File - Flipped Out Science with Mrs. Thomas!
... number of atoms of each element in chemical formulas containing substances 8.5F recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass 8.5E investigate how evidence of chemical reactions indicate that new substances wi ...
... number of atoms of each element in chemical formulas containing substances 8.5F recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass 8.5E investigate how evidence of chemical reactions indicate that new substances wi ...
CHEMICAL REACTIONS OBJECTIVES 1. To study reactions
... When two ionic solutions are mixed and there is not an ion combination that is insoluble or gaseous, no reaction will be observed. For example, no reaction occurs between NaCl and KNO3 because all ionic combinations are soluble compounds. Part II. Exothermic and endothermic reactions Reactions that ...
... When two ionic solutions are mixed and there is not an ion combination that is insoluble or gaseous, no reaction will be observed. For example, no reaction occurs between NaCl and KNO3 because all ionic combinations are soluble compounds. Part II. Exothermic and endothermic reactions Reactions that ...
5H2O → CuSO4 + 5H2O(g)
... 3c) Halogens usually have an oxidation number of -1 (except when bonded to oxygen or in polyatomic ions). 4) The sum of oxidation numbers is 0 for a neutral compound and is equal to the net charge for a polyatomic ion. (Example: NaCl = 0, SO42- = -2) ...
... 3c) Halogens usually have an oxidation number of -1 (except when bonded to oxygen or in polyatomic ions). 4) The sum of oxidation numbers is 0 for a neutral compound and is equal to the net charge for a polyatomic ion. (Example: NaCl = 0, SO42- = -2) ...
elements of chemistry unit
... Once the number and types of shared electrons has been determined, assign each shared electron to the more electronegative element. ELECTRONEGATIVITY An element’s ability to attract electrons is its electronegativity. In general, the halogens and group 16 atoms have the highest electronegativity val ...
... Once the number and types of shared electrons has been determined, assign each shared electron to the more electronegative element. ELECTRONEGATIVITY An element’s ability to attract electrons is its electronegativity. In general, the halogens and group 16 atoms have the highest electronegativity val ...
chemistry
... the instructions from the proctor for completing the student information on your answer sheet. Record your answers to the Part A and Part B–1 multiple-choice questions on this separate answer sheet. Record your answers for the questions in Part B–2 and Part C in your separate answer booklet. Be sure ...
... the instructions from the proctor for completing the student information on your answer sheet. Record your answers to the Part A and Part B–1 multiple-choice questions on this separate answer sheet. Record your answers for the questions in Part B–2 and Part C in your separate answer booklet. Be sure ...
Atomic Structure Practice Test
... d. either greater than or less than ____ 12. According to Dalton's atomic theory, atoms a. are destroyed in chemical reactions. b. can be divided. c. of each element are identical in size, mass, and other properties. d. of different elements cannot combine. ____ 13. Which of the following statements ...
... d. either greater than or less than ____ 12. According to Dalton's atomic theory, atoms a. are destroyed in chemical reactions. b. can be divided. c. of each element are identical in size, mass, and other properties. d. of different elements cannot combine. ____ 13. Which of the following statements ...
Atomic Structure Practice Test Multiple Choice Identify the choice
... d. either greater than or less than ____ 12. According to Dalton's atomic theory, atoms a. are destroyed in chemical reactions. b. can be divided. c. of each element are identical in size, mass, and other properties. d. of different elements cannot combine. ____ 13. Which of the following statements ...
... d. either greater than or less than ____ 12. According to Dalton's atomic theory, atoms a. are destroyed in chemical reactions. b. can be divided. c. of each element are identical in size, mass, and other properties. d. of different elements cannot combine. ____ 13. Which of the following statements ...