Dipole moment Study guides, Class notes & Summaries

Dipole Moment - ANSWER Partial negative and partial positive charge What causes surface tension? - ANSWER Hydrogen bonding Hydrophilic - ANSWER "water loving" Hydrophobic - ANSWER "water fearing" Hydration Shell - ANSWER Water surrounding the ions Diffusion - ANSWER Movement of ions from high to low concentrations Osmosis - ANSWER Diffusion of water Amphipathic - ANSWER "both loving" Characteristics of the head group - ANSWER Hydrophilic, charged, phosphodiestor bon...

Molecule Unit of matter that results when two or more atoms are joined by covalent bonds Ionic Bond A bond resulting from the electrostatic attraction of a cation for an anion. Brainpower Read More Nonpolar Covalent Bond A bond characterized by an even distribution of charge; electrons in the bonds are shared equally by the two atoms Polar Covalent Bond A bond resulting from unequal sharing of bonding pairs of electrons between atoms Polyatomic Ions Charged g...

UWorld MCAT QBank Questions Missed Exam Questions And Answers Paramagnetic - answerUnpaired electrons in the electronic configuration of an atom or ion, which end up interacting with each other in a magnetic field Diamagnetic - answerPaired electrons in the electronic configuration of an atom or ion, which will NOT interact with each other in a magnetic field Electron capture - answerAn alternative form of positron emission (B^+ decay) Reactivity of forming Ionic Bonds - answerThis increases as ...

Hydrogen Bonds correct answer: - Specific type of dipole-dipole interaction - MUST have a H covalently bonded to F O or N Dipole-Dipole correct answer: - Attractions between polar molecules - Weaker than covalent bonds - Stronger the dipole moment, the boiling point gets larger Dispersion Forces correct answer: - Everything has these - Attractions arise from movement - Short-lived interaction; Very weak - Contribute to ALL intermolecular forces London Forces depend on: ...

ATOMS - Answer FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - Answer A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPONENT OF ALL ATOMIC NUCLEI. THE PROTON FORMS, BY ITSLEF, THE NUCL...

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....

ATOMS - Answer FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - Answer A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPONENT OF ALL ATOMIC NUCLEI. THE PROTON FORMS, BY ITSLEF, THE ...

Water molecules are attracted to each other and form ________ bonds. correct answers Hydrogen A bond in which electrons are shared between atoms is a _______ bond. correct answers Covalent Which of the following is NOT true about hydrophilic molecules? correct answers They have equal sharing of electrons across all the atoms in the molecule Which of the following is true about hydrophilic molecules? correct answers They interact with the dipole moment in water They diffuse easily in ...

A father's age is twice the sum of the ages of his four sons. In 30 years, the total of the sons' ages will be twice the age of their father. How old is the father now? a) 24 b) 48 c) 32 d) 40 e) 36 - ANS d) 40 If the sum of the four son's ages is x at present, the father's age is 2x. In 30 years, the total of the son's ages will be x+4×30=x+120, whereas the father's age will be 2x+30. Therefore, x+120=2(2x+30), which yields x=20, and hence, the father's age at present i...

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