Periodic Trends
This periodic trend increases across a period and decreases as you go down a group.
What is electronegativity?
When a reactant is used up completely in a reaction.
What is a limiting reactant?
The type of bond formed between two nonmetals.
What is covalent bonding?
Solid formed through double replacement reactions.
What is a precipitate?
Energy cannot be created or destroyed.
What is the first law of thermodynamics?
Due to d-orbitals, the group has elements that don't follow the octet rule.
What are transition metals?
The percent yield if 195g of product is produced yet 250g was expected.
What is 78.0%?
IMF in-between water molecules.
What is hydrogen bonding?
The name for the minimum energy needed to start a chemical reaction.
What is activation energy?
Increases the rate of reaction through lowering activation energy.
What is a catalyst?
Due to the electron affinity of this group being positive, it takes energy to add an electron.
What are noble gases?
The max amount of product that could form from the given reactants.
Bond angle of trigonal planar.
What is 120 degrees?
What is 5?
For an exothermic reaction, a descriptor of energy released per mole of whatever product.
What is enthalpy change?
This element is to the right of sodium yet has a lower first ionization energy.
What is potassium?
What is a precipitate reaction?
Total # of Orbitals in second energy level.
What is 4?
The pH whenever the concentration of an acid is equal to its conjugate base.
What is pKa?
Equation that relates to that of Gibbs free energy to enthalpy and entropy.
What is G= H- T(S)?
(Change in G equal to change in H - T times change in S)
Why atomic radii has an increase as it goes down a group.
What are increasing energy levels and electron shielding?
Why stoichiometry is based off of moles and not mass.
What are mole ratios?
What is 4s?
Conjugate base of H2SO4
What is HSO-4
Why some exothermic reactions do not happen spontaneously.
What is a high activation energy?