The intermolecular force between partially negative/positive compounds, which are caused by an uneven sharing of electrons. This is a result of electronegativity differences
What is dipole-dipole?
100
Higher boiling point: H2 or Br2?
What is Br2 (larger electron cloud)
100
Which is more soluble: table salt or sugar?
What is table salt? (It is ionic, and ionic substances are more soluble than polar covalent substances)
100
A substance that is ductile; malleable; good conductors of heat and electricity; shiny when freshly cut or polished
What is metallic substance?
100
Rank the following in terms of bond length: single bond, double bond, triple bond
Single = longest, Triple = shortest
200
Intermolecular force caused by momentary uneven distribution of electrons
What is London Dispersion force?
200
Which has a higher boiling point: Cl2 or H20?
What is water (Polar vs. London Dispersion Forces)
200
Water and ethanol (CH3CH2OH)
What is soluble?
200
A substance that is crystalline solid at STP; high
melting point and boiling point; conducts electricity in aqueous solutions; good conductors in molten state; brittle; varying solubility in water
What is an ionic compound?
200
The acronym VSEPR theory
What is Valence Shell Electron Pair Repulsion theory
300
Intermolecular force involving hydrogen bonded to fluorine, oxygen or nitrogen.
What is hydrogen bonding?
300
Which has higher boiling point: HCl or HBr?
What is HCl?
300
Methane (CH3) and ethanol (CH3CH2OH), both in liquid phase
What is soluble? (Remember that ethanol is amphipathic)
300
A substance that is a conductor of electricity; Solid, very high melting point and boiling point; very hard; not soluble in water; a "network" of bonds
What is covalent network?
300
The shape the water molecule takes on (include bond angle)
What is bent? (less than 109.5 degrees, or 104.5 to be exact)
400
Intermolecular forces within covalent compounds.
What is van der Waals forces?
400
Which has a higher boiling point: water or table salt?
What is table salt? (Ionic compounds have much higher boiling points)
400
Ammonia and water (both in liquid phase)
What is soluble? (both polar)
400
a substance that has a low melting point & boiling point;
does not conduct electricity in aqueous solutions
What is covalent substance?
400
The C-F bond in carbon tetrafluoride has a very high difference in electronegativity, yet the molecule shows no polarity. Explain why this is?
What is a symmetrical pull on electrons, cancelling the dipole within the molecule.
500
Intermolecular force involving an ion which induces a dipole in a neutral compound
What is ion-induced dipole?
500
Which has a higher boiling point: Radon or helium
What is radon?
500
Fat and ethanol
What is soluble (hydrophobic and hydrophobic tail)
500
Describe why metals are good conductors of electricity
Metals are essentially cations embedded in a sea of non-localized electrons, which are able to flow with ease
500
The ATOMIC GEOMETRY (not electron geometry) of ammonia