General Chemistry Questions & Answers

General Chemistry Questions & Answers =-RT lnKeq - CORRECT ANSWER - What are the equations for reaction Q? 1/2000 of a proton - CORRECT ANSWER - What is the mass of an electron? A= Aoe^(-kt) - CORRECT ANSWER - What is the formula for radioactive decay? Accurate - CORRECT ANSWER - close to the intended value Actual yield/ Theoretical yield - CORRECT ANSWER - Percent Yield Adiabatic - CORRECT ANSWER - No heat is exchanged Q=0 U=-W Alkali - CORRECT ANSWER - Lower density Readily reacts with water Alkaline - CORRECT ANSWER - So reactive that it is not in normal state Arrhenius - CORRECT ANSWER - Acid forms by excess H and Base by excess by OH Ex: water Arrhenius Equation - CORRECT ANSWER - The lowest activation energy and high temperatures will create a negative exponent where it increases k As they move higher, they get ahead A=absorb energy H= higher potential energy E=excited D=distant from nucleus - CORRECT ANSWER - What is the pneumonic for electrons moving to a higher energy state? Atomic radius - CORRECT ANSWER - What decreases from left to right on periodic table? Balmer Series - CORRECT ANSWER - The group corresponding less than 3 to n=2 and includes four wavelengths of visible region Bohr's - CORRECT ANSWER - A centripetal force acting on electrons (angular acceleration) First model of the an atom Boiling Point Elevation and Freezing Point Depression - CORRECT ANSWER - Tb= iKM (molality) Bond Disassociation Energy - CORRECT ANSWER - =bonds broken (absorbed) - bonds formed (released) -bond formation is exothermic -bond broken is endothermic