Atomic Structure and Periodic Table
Solutions
Bonding
Thermodynamics
Organic Chemistry
100
What are the horizontal row of the periodic table called?
periods
100
What is (moles of solute)/(kilograms of solvent)?
molality
100
What happens with the electrons in a covalent bond?
they are shared
100
If ΔH is negative, is the reaction exothermic or endothermic?
exothermic
100
What is the name of hydrocarbons that contain triple bonds?
(please spell it)
alkynes
200
Is helium diamagnetic or paramagnetic?
diamagnetic
200
What is the color of NiCl2 in solution?
green
200
What is the name of the orbital set with this geometry and sp hybridization?
linear
200
What happens to the entropy in a reaction where the moles of gaseous substances increases?
it increases
200
What is the name of C3H8?
propane
300
The Bohr model is true for only what element?
hydrogen
300
The principle that defines how a reaction will shift to obtain equilibrium is known as
LaChatlier's
300
What is the name of the orbital set with this geometry and sp2 hybridization?
trigonal planar
300
What is the spontaneity of a process when both ΔS and ΔH are negative?
spontaneous at only low temperatures
300
What are alkenes?
hydrocarbons that have double bonds
400
Identify the element that contains a single electron in the 4s orbital in its ground state
potassium
400
Which of the following is insoluble?
NH4OH, NaOH, Al(OH)2, Ba(OH)2
Al(OH)2
400
What do you call the attractive force resulting when polar molecules line up so that the positive and negative ends are close to each other?
dipole-dipole attraction
400
At what conditions is a process spontaneous at only high temperatures (are ΔS and ΔH positive, negative, etc.)?
ΔS is positive, ΔH is positive
400
What is the name of CH3OH?
methanol
500
Which of the following elements have the biggest first ionization energy?
Na, Mg, Al, Si
silicon
500
What is the solubility product(Ksp) of this reaction?
Ag2CrO4(s) <--> 2Ag+(ap) + CrO42-(aq)
Ksp = [Ag+]+[CrO42-]
500
What is the name of the orbital set with this geometry and dsp3 hybridization?
trigonal bipyrimidal
500
What does the symbol,
ΔHf°
represent?standard enthalpy of formation
500
What is the name of this molecule?
2,2-dimethylbutane