C215 STUDY NOTES EXAM QUESTIONS WITH CORRECT ANSWERS

C215 STUDY NOTES EXAM QUESTIONS WITH CORRECT ANSWERS an element (often a metal or reactive gas) displaces another element from a compound E + AB ----> EB + A -Answer- single displacement reaction an exchange of elements takes place between two compounds AX + BY ----> AY + BX -Answer- double displacement/metathesis reaction four driving forces of displacement reactions -Answer- formation of a precipitate formation of gas formation of water formation of a soluble weak electrolyte when the reaction between two substances results in the formation of an insoluble solid, the reaction is known as a -Answer- precipitation reaction ions are removed from solution creating a driving force for reaction -Answer- gas-forming reaction when acid and base are mixed, ______________ will occur and water and salt will be produced -Answer- acid-base reaction to predict reaction products for single displacement reaction, we must also understand the relative ____________ ________ of elements in the same family or group -Answer- chemical activity List the halogens (Br2, I2, and Cl2) in order of increasing activity -Answer- CL2>Br2>I2 Rank the activities of metals (Fe, Cu, Mg) -Answer- Mg>Fe>Cu common products of Acid + Base -Answer- water and salt compound Acid + Carbonate or Hydrogen Carbonate Compound -Answer- CO2 + salt + water thermodynamics -Answer- study of energy and its changing forms thermochemistry -Answer- examines any changes in energy that accompanies a chemical reaction