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Chem Final Study Guide Energy How much heat energy must be
... a) Proton donor- acid. Proton acceptor- base. Water is amphoteric… can be either an acid or base, depending on what it is paired with. Use the following Solubility Graph to answer questions 73) Which compound is least soluble in water at 40.°C? most soluble? a) Least soluble- SO2 Most Soluble- KI 74 ...
... a) Proton donor- acid. Proton acceptor- base. Water is amphoteric… can be either an acid or base, depending on what it is paired with. Use the following Solubility Graph to answer questions 73) Which compound is least soluble in water at 40.°C? most soluble? a) Least soluble- SO2 Most Soluble- KI 74 ...
Chemistry Fall-2016 Final
... AA. any metal in Group 2A of the periodic table; generally harder, denser, stronger, and have higher melting points than alkali metals ...
... AA. any metal in Group 2A of the periodic table; generally harder, denser, stronger, and have higher melting points than alkali metals ...
Science 1206 Unit 3 Part 1
... electrons (to be like the noble gases), since both cannot gain electrons at the same time they share. The unit formed by a covalent bond is called a molecule (it is neutral it has no charge) ...
... electrons (to be like the noble gases), since both cannot gain electrons at the same time they share. The unit formed by a covalent bond is called a molecule (it is neutral it has no charge) ...
Year 10 Chemistry Exam June 2011 Multiple Choice Section A
... A different atoms of the same element with a different number of protons B different atoms of the same element with a different number of electrons C different atoms of the same element with different mass numbers. D different atoms of the same element with different atomic numbers. 7 The maximum nu ...
... A different atoms of the same element with a different number of protons B different atoms of the same element with a different number of electrons C different atoms of the same element with different mass numbers. D different atoms of the same element with different atomic numbers. 7 The maximum nu ...
Atomic Structure Tick Sheet
... I know that electrons are arranged around the nucleus of an atom in SHELLS or ENERGY LEVELS. I know that the shell nearest to the nucleus is FULL when it has a maximum of 2 electrons. I know that the other shells can hold a maximum of 8 electrons. I know that the combining power (valency) of an elem ...
... I know that electrons are arranged around the nucleus of an atom in SHELLS or ENERGY LEVELS. I know that the shell nearest to the nucleus is FULL when it has a maximum of 2 electrons. I know that the other shells can hold a maximum of 8 electrons. I know that the combining power (valency) of an elem ...
CHEMISTRY CHAPTER 5 OUTLINE NOTES 5.1 – Light and
... o It is impossible to know both the speed (velocity) and position of an electron. You may only know one or the other at one time. • Hydrogen’s Atomic Orbitals o Electrons occupy three-dimensional regions of space called atomic orbitals. o Schrodinger’s Wave equation can predict the probable location ...
... o It is impossible to know both the speed (velocity) and position of an electron. You may only know one or the other at one time. • Hydrogen’s Atomic Orbitals o Electrons occupy three-dimensional regions of space called atomic orbitals. o Schrodinger’s Wave equation can predict the probable location ...
AP Chemistry Test Review
... 34) Calculate K by doing ICE box problems 35) acid/base definitions…Bronsted-Lowry = acids donate protons; Lewis= acids accept e- pair 36) calculate pH, pOH, [H+], [OH−] 37) acid equilibrium problems…ICE box…remember pH can be used to find [H+]. 38) salt pH…example: Na2CO3 = slightly basic; Al(NO3)3 ...
... 34) Calculate K by doing ICE box problems 35) acid/base definitions…Bronsted-Lowry = acids donate protons; Lewis= acids accept e- pair 36) calculate pH, pOH, [H+], [OH−] 37) acid equilibrium problems…ICE box…remember pH can be used to find [H+]. 38) salt pH…example: Na2CO3 = slightly basic; Al(NO3)3 ...
2008 midtermkey - University of Victoria
... A) Atomic orbitals describe regions in which an electron is most likely to be found around a nucleus. B) The three electrons in the configuration 2p3 have parallel spins (i.e. the same ms value). C) The fact that two electrons in the same atom cannot have the same set of four quantum numbers n, ℓ, m ...
... A) Atomic orbitals describe regions in which an electron is most likely to be found around a nucleus. B) The three electrons in the configuration 2p3 have parallel spins (i.e. the same ms value). C) The fact that two electrons in the same atom cannot have the same set of four quantum numbers n, ℓ, m ...
C1403_Lecture9_10110..
... atom only depends on the value of n shell = all orbitals with the same value of n subshell = all orbitals with the same value of n and l an orbital is fully defined by three quantum numbers, n, l, and ml Each shell of QN = n contains n subshells ...
... atom only depends on the value of n shell = all orbitals with the same value of n subshell = all orbitals with the same value of n and l an orbital is fully defined by three quantum numbers, n, l, and ml Each shell of QN = n contains n subshells ...
Molecular Polarity:
... Molecular Polarity: Knowing the shape of a substance’s molecules is a key to understanding many aspects of its physical and chemical behavior. One important effect of molecular shape is molecular polarity, which strongly influences melting and boiling points, solubility and even reactivity. ...
... Molecular Polarity: Knowing the shape of a substance’s molecules is a key to understanding many aspects of its physical and chemical behavior. One important effect of molecular shape is molecular polarity, which strongly influences melting and boiling points, solubility and even reactivity. ...
The Exam 2 Solutions are also available now.
... The three views each show two nodal planes for three total: xy, xz, and yz. Thus, l must equal 3 (i.e., this is an f orbital). There are no spherical nodes present; thus, n = 3 + 1 = 4 (i.e., a 4f orbital). The orbital is not cylindrically symmetric about the z (or any) axis; thus m ≠ 0, but m could ...
... The three views each show two nodal planes for three total: xy, xz, and yz. Thus, l must equal 3 (i.e., this is an f orbital). There are no spherical nodes present; thus, n = 3 + 1 = 4 (i.e., a 4f orbital). The orbital is not cylindrically symmetric about the z (or any) axis; thus m ≠ 0, but m could ...
CHEMISTRY
... force of attraction between two oppositely charged ions, opposites attract). Binary Ionic Compounds These involve metal ions (+) bonded to non-metal ions (-). The ratio of the ions to each is such that the total charge of the compound is ________. This ratio is shown in the ___________________ of a ...
... force of attraction between two oppositely charged ions, opposites attract). Binary Ionic Compounds These involve metal ions (+) bonded to non-metal ions (-). The ratio of the ions to each is such that the total charge of the compound is ________. This ratio is shown in the ___________________ of a ...
Name #_____
... Intermolecular – between molecules (ex: for H2O, the attraction between many H2O molecules). 15. Rank the following forces in increasing intermolecular attraction: dipole-dipole, hydrogen-bond, electrostatic, dispersion force. Dispersion, dipole-dipole, hydrogen-bond, electrostatic attraction 16. Wh ...
... Intermolecular – between molecules (ex: for H2O, the attraction between many H2O molecules). 15. Rank the following forces in increasing intermolecular attraction: dipole-dipole, hydrogen-bond, electrostatic, dispersion force. Dispersion, dipole-dipole, hydrogen-bond, electrostatic attraction 16. Wh ...
Electron Configuration
... In Schrodinger’s model, there are four “quantum” numbers that tell us where an electron is likely to be located. Principal (n), 1-7, gives the energy level Subshell (l), s-p-d-f, gives the shape of region Orbital (m), gives the orientation in space of the shapes Spin (s), clockwise or coun ...
... In Schrodinger’s model, there are four “quantum” numbers that tell us where an electron is likely to be located. Principal (n), 1-7, gives the energy level Subshell (l), s-p-d-f, gives the shape of region Orbital (m), gives the orientation in space of the shapes Spin (s), clockwise or coun ...
PowerPoint Presentation - Duality of Matter
... Actually, we need not speak of particles at all. For many experiments it is more convenient to speak of matter waves . . . The two pictures are of course mutually exclusive, because a certain thing cannot at the same time be a particle . . . and a wave . . . but the two complement each other. By pla ...
... Actually, we need not speak of particles at all. For many experiments it is more convenient to speak of matter waves . . . The two pictures are of course mutually exclusive, because a certain thing cannot at the same time be a particle . . . and a wave . . . but the two complement each other. By pla ...
1 - Cobb Learning
... A. valence electrons B. inside the nucleus C. closest to the nucleus D. positively charged 5. The modern periodic table is arranged in order of increasing … A. atomic mass B. number of valence electrons C. atomic number D. number of neutrons 6. What information in the periodic table indicates the nu ...
... A. valence electrons B. inside the nucleus C. closest to the nucleus D. positively charged 5. The modern periodic table is arranged in order of increasing … A. atomic mass B. number of valence electrons C. atomic number D. number of neutrons 6. What information in the periodic table indicates the nu ...
atomic number - geraldinescience
... • The sum of the number of protons and neutrons in an atom is the mass number. • The mass of a subatomic particle is too small to be expressed easily in grams, so a special unit called the atomic mass unit (amu) is used. • Protons and neutrons each have an atomic mass close to 1 amu. • Electrons hav ...
... • The sum of the number of protons and neutrons in an atom is the mass number. • The mass of a subatomic particle is too small to be expressed easily in grams, so a special unit called the atomic mass unit (amu) is used. • Protons and neutrons each have an atomic mass close to 1 amu. • Electrons hav ...
Electron-Config
... In Schrodinger’s model, there are four “quantum” numbers that tell us where an electron is likely to be located. Principal (n), 1-7, gives the energy level Subshell (l), s-p-d-f, gives the shape of region Orbital (m), gives the orientation in space of the shapes Spin (s), clockwise or coun ...
... In Schrodinger’s model, there are four “quantum” numbers that tell us where an electron is likely to be located. Principal (n), 1-7, gives the energy level Subshell (l), s-p-d-f, gives the shape of region Orbital (m), gives the orientation in space of the shapes Spin (s), clockwise or coun ...
1. Select the correct statement about subatomic particles. a
... 21. Which element when combined with fluorine would most likely form an ionic compound? a. lithium c. phosphorus b. carbon d. chlorine 22. Compounds that are composed of ions ________. a. are molecular compounds b. have relatively high melting and boiling points c. are for the most part composed of ...
... 21. Which element when combined with fluorine would most likely form an ionic compound? a. lithium c. phosphorus b. carbon d. chlorine 22. Compounds that are composed of ions ________. a. are molecular compounds b. have relatively high melting and boiling points c. are for the most part composed of ...
Test Review: Unit 1 - Ms. Hill`s Pre
... c. Law of Multiple Proportions: if two or more different compounds are composed of the same elements, the ratio of the masses of the second element combined with a certain mass of the second is always a ratio of small whole numbers. (There cannot be a half of an atom in a compound. H2O for example i ...
... c. Law of Multiple Proportions: if two or more different compounds are composed of the same elements, the ratio of the masses of the second element combined with a certain mass of the second is always a ratio of small whole numbers. (There cannot be a half of an atom in a compound. H2O for example i ...
Document
... Trap 87Rb, then 41K in MOT1 Transfer first Rb, then K into MOT2 Now have 107 K atoms at 300mK and 5×108 Rb atoms at 100mK Load these into the magnetic trap after preparing in doubly-polarized spin state |F=2,mF=2> Selective evaporative cooling with microwave knife Check temperature (density) at vari ...
... Trap 87Rb, then 41K in MOT1 Transfer first Rb, then K into MOT2 Now have 107 K atoms at 300mK and 5×108 Rb atoms at 100mK Load these into the magnetic trap after preparing in doubly-polarized spin state |F=2,mF=2> Selective evaporative cooling with microwave knife Check temperature (density) at vari ...
Chapter notes Class: IX Chapter Name: Atoms and molecules Top
... Polyatomic molecules: Any molecule containing more than four atoms is called a polyatomic molecule. For example, sulphur (S8), methane (CH4), nitric acid (HNO3), ethanol (C2H5OH). ...
... Polyatomic molecules: Any molecule containing more than four atoms is called a polyatomic molecule. For example, sulphur (S8), methane (CH4), nitric acid (HNO3), ethanol (C2H5OH). ...
Chemical bond
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are ""strong bonds"" such as covalent or ionic bonds and ""weak bonds"" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.In general, strong chemical bonding is associated with the sharing or transfer of electrons between the participating atoms. The atoms in molecules, crystals, metals and diatomic gases—indeed most of the physical environment around us—are held together by chemical bonds, which dictate the structure and the bulk properties of matter.All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. Electrostatics are used to describe bond polarities and the effects they have on chemical substances.