Bonding
What is the difference between Covalent and Ionic Bonds?
What are the horizontal rows called on the Periodic Table?
Periods
If ΔH is positive, is the reaction exothermic or endothermic?
Endothermic
What is n/L?
Molarity
What is the electron configuration of C?
1s^2 2s^2 2p^2
How many sigma bonds does H2O have?
2 sigma bonds
What are the vertical columns called in the Periodic Table?
Groups
What happens to entropy if you decrease the mols of the reactants and no phase changes occur.
Entropy decreases
What is the concentration formula for k?
What is the noble gas notation of the electron configuration of Mg?
[Ne]3s²
What types of IMFs do polar molecules have?
LDFs and Dipole-Dipole forces
What determines atomic radius moving horizontally?
Number of protons in the nucleus pulling in the electrons
Is the reaction thermodynamically favorable when ΔS and ΔH are both negative?
Only at low temperatures
Which of the following is insoluble?
NH4OH, NaOH, Al(OH)2, Ba(OH)2
Al(OH)2
What is the electron configuration of Zn?
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰
How many lone pairs of electrons are on the sulfur atom in sulfite ion, SO3 2- ?
1 Lone Pair
What is electronegativity?
The ability of an atom to attract electrons to itself
What does ΔHf° represent?
Standard enthalpy of formation
What substances change the color of solution in the flask during a titration?
An indicator
In an electron configuration code, superscripts placed on sub-levels indicate the number of what?
Electrons
What is Formal Charge?
The difference between the valence electrons in a neutral atom and the number assigned to that atom in a lewis structure.
Which has the highest ionization energy?
Na, Mg, Al, Si
Si
To be thermodynamically favorable, what must ΔS and ΔH be?
ΔS needs to be positive and ΔH needs to be negative
What is vapor pressure?
The pressure over the surface that forms as a solution evaporates or vaporizes.
An atom has the electron configuration of 1s^2 2s^2 2p^5. How many electrons are in that atom?
9