Imfs - Study guides, Class notes & Summaries

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...

BS 161 FINAL EXAM, BS 161 FINAL EXAM, BS161 PCQ & RIQ Tested Questions With Revised Correct Answers <Updated < Already Passed > Which argument best defends a characteristic of the solute seen on the right? - Answer -The solute is hydrophobic because there are is no observable evidence of electrostatic interactions between the partially charged atoms of the water molecule and the solute What best describes a lipid? - Answer -a molecule that does not dissolve well in water The fl...

UNE CHEM 1011 General Chemistry II Midterm Fall Questions With Verified & Complete Solutions 2023 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 ...

Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the nucleus are positively charged and so the alpha particle is repelled. Is this statement (Dalton's Theory) true or false and why? "All atoms of an element are identical and have the same mass and properties." - Answer-False. Atoms of the same element can have different numbers of neutrons. What is the evidence that electrons are subatomic particles? - Answer-The nature of the electron is i...

Chem 104 1st exam|Complete Questions with 100% Correct Answers What are hybrid orbitals? orbitals of equal energy produced by the combination of two or more orbitals on the same atom What are the types of hybrid orbitals SP- 2 regions of density SP^2- 3 regions of density(3sp^2s) SP^3- 4 regions (4 sp^3s) What are the 4 types of hydrocarbons alkanes, alkenes, alkynes, and aromatic hydrocarbons Alkane a hydrocarbon containing only single covalent bonds Alkene a hydrocarbon that contai...

Gases are more soluble in _______ water. correct answer: cold Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) What is the enthalpy of hydration? Its sign of dH? correct answer: Enthalpy change associated with going from gas to aqueous. It is always exothermic (-dH) What is enthalpy of solution? correct ...

SCH4UA Exam Review 2024 VERIFIED ANSWERS Electromagnetic Radiation in order of increasing energy and decreasing wavelength. Blackbody radiation Photoelectric effect Emission spectra Bohr's hypothesis Heisenberg Uncertainty Principle Quantum Numbers Intermolecular Forces Strongest to weakest IMFs If a molecule is non-polar (london dispersion forces), why is there still attraction between its atoms? T/F, The larger the compound, the greater the polarizability. Comparing IMF strengths ...

MTL200 - Final Exam Questions With Verified Answers Atomic mass vs. atomic weight - answerMass : the sum of Protons and Neutrons of the element. Weight : Weighted avgerage of the isotopes of given element quantum numbers (name, visual meaning, symbol) - answerPrinciple : Shell -- energy level / size (n) Angular Momentum : Subshell -- cloud shape (l) Magnetic : Orbital -- cloud shape variant (m_{l}) Spin : Spin -- electron spin (up/down) (m_{s}) subshell letters (in order and shape name...

Molarity moles of solute/liters of solution mole fraction moles of A/total moles solute + moles solvent mass percentage mass of solute/mass of solution x 100% mass of solution solute+solvent ppm mass of solute/mass of solution x 10^6 ppb mass of solute/mass of solution x 10^9 volume percentage vol of component/total volume x 100 molality moles of solute/kg of solvent ** denominator does not include mass of solute Ionization Energy The amount of...

This PowerPoint covers Exam 1 which features IMF's, Lewis Structures, polarity, line-bond structures, resonance structures, acid-base chemistry, IR spectroscopy, and mass spectrometry. This PowerPoint does not include any practice but explains the topics covered in detail.