Dipoles Study guides, Study notes & Summaries

Electronegativity is larger/smaller with a greater number of electron shells. - correct answer smaller Electronegativity is larger/smaller with a greater proton number in a given period (horizontal row). - correct answer larger What is wrong, if anything, with the following statement: "When NaCl is dissolved in water, the water molecules closest to the ions will tend to preferentially orient themselves so that their oxygen atoms can interact electrostatically with the chloride ions...

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...

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....

AQA AS level Chemistry exam 2024 questions with 100% correct answers Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass nu...

What are the 5 types of intermolecular forces? 1. Dispersion 2. Hydrogen bonding 3. Dipole-dipole 4. Ion-dipole 5. Ion-Ion Dispersion forces the weakest intermolecular force; a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles Hydrogen bonding forces stronger than dispersion forces its an attraction of hydrogen to O, F, and N Dipole-dipole forces intermolecular forces that exist between polar m...

MCDB Practice Exam 1 Questions & Answers 2023/2024 Electronegativity is larger/smaller with a greater number of electron shells. - ANSWER-smaller Electronegativity is larger/smaller with a greater proton number in a given period (horizontal row). - ANSWER-larger What is wrong, if anything, with the following statement: "When NaCl is dissolved in water, the water molecules closest to the ions will tend to preferentially orient themselves so that their oxygen atoms can interact elec...

An artifact that can mimic frontal slowing, even with eye lead monitors in place is _____. - correct answer Glossokinetic (GKP) MRI became a diagnostic tool in _____ - correct answer 1980's Short massive tonic contraction in young children or infants - correct answer 1980's Mvts that imitate natural mvts but are involuntary - correct answer Complex Motor Sudden shock like muscle jerks - correct answer Myoclonic Repetitive rapid succession of flexion/extension of muscle...

AQA AS level Chemistry exam 2024 questions with 100% correct answers Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass nu...

Organic Chemistry correct answer: the study of the compounds of carbon Electronegativity correct answer: A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom -increases from left to right -increases from bottom to top Difference between EN < 0.5 correct answer: Nonpolar covalent; two nonmetals or a nonmetal and a metalloid 0.5<Difference between EN>1.9 correct answer: Polar covalent; two nonmetals or a nonmetal a...

the chemical reaction that breaks down all the major macro-molecules Hydrolysis What is the strongest type of INTER-molecular bonds? Hydrogen bonds are the strongest intermolecular bonds.... diople-dipole bonds are weaker. . . Vander wall bonds are the weakest. Brainpower Read More 0:00 / 0:15 Why is water a liquid at high temperatures? Hydrogen bonding bonds the water molocules closer together. What is an ampipathic molecule? give an Example. A molecule with both ...