chem 1011

University Of New England (UNE )

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UNE chem 1011 final Questions With Complete Solutions
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5

juli 2023

2022/2023

A+
When are solubility equilibria established correct answer: when the dissolution and precipitation of a solute species occur at equal rates A solute with finite solubility can yield a saturated solution when it is added to a solvent in an amount exceeding its solubility, resulting in a ______ mixture of the saturated solution and the excess, undissolved solute. correct answer: heterogeneous Equilibrium constant for solubility equilibria correct answer: solubility product constant Ksp ...
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UNE CHEM 1011 General Chemistry II Midterm Fall 2023 Questions With Complete Solutions
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9

juli 2023

2022/2023

A+
intermolecular forces correct answer: the various forces of attraction that may exist between the atoms and molecules of a substance due to electrostatic phenomena kinetic energies correct answer: the energy required to overcome the attractive forces and thus increase the distance between particles Intramolecular forces correct answer: within the molecule that keep the molecule together Intermolecular forces correct answer: attractions between molecules, which determine many of the ...
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UNE Chem 1011 EXAM Questions With Complete Solutions
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24

juli 2023

2022/2023

A+
Intermolecular forces (IMFs) correct answer: the forces of attraction between molecules of covalent compounds (weak) Intramolecular forces correct answer: forces within molecules. Forces caused by the attraction and repulsion of charged particles (strong) Dispersion forces correct answer: present in all molecules attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces; these are the weakest inter...
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UNE CHEM 1011 LAB FINAL QUESTIONS WITH COMPLETE SOLUTIONS
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13

juli 2023

2022/2023

A+
solution correct answer: consists of a solvent (dissolving medium) and one or more solutes; most of its properites are dependent on the properties of the solute Colligative properties correct answer: properties of a solution that depend only on the number of particles dissolved in it, not the properties of the particles themselves. The main ones are boiling point elevation and freezing point depression. Boiling point correct answer: temeperature where vapor pressure equals atoms on the ...
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UNE - Chem 1011 - Midterm Study Guide Questions With Complete Solutions
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29

juli 2023

2022/2023

A+
A hydrogen bond is characterized by A. the attraction of temporary dipoles produced by the random asymmetries in electron motion B. the electrostatic attraction between the permanent dipoles in any polar molecule C. the highly concentrated partial charge between an H atom and F, O, or N atoms D. the covalent sharing of electrons between two atoms in a molecule correct answer: C. the highly concentrated partial charge between an H atom and F, O, or N atoms (Ref: Week 1 Quiz) A....
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UNE chem 1011 midterm Questions With Complete Solutions
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10

juli 2023

2022/2023

A+
The phase in which a substance exists depends on the relative extents of its- correct answer: Intermolecular forces and kinetic energies of its molecules van der Waals forces correct answer: a slight attraction that develops between the oppositely charged regions of nearby molecules Londen dispersion forces correct answer: attraction between two rapidly fluctuating, temporary dipoles; significant only when particles are very close together instantaneous dipole correct answer: a flee...
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