CHEM 210 Exam 2 Questions with Correct Answers

CHEM 210 Exam 2 Questions with Correct Answers A reaction in which electrons are transferred from one reactant to another - Answeroxidation-reduction Loss of electrons - Answer-Oxidation Gain of electrons - Answer-Reduction Oxidation takes place at the surface of an electrically conductive material called - Answer-anode The reduction takes place at another electrically conductive surface called the - Answercathode __________ cells use a spontaneous oxidation-reduction reaction to produce electrical energy. - Answer-galvanic cells __________ cells uses electrical energy to produce a non spontaneous oxidation reduction reaction - Answer-electrolytic cells What is the amount of energy available from a voltaic cell or needed for an electrolytic cell? - Answer-cell potential What does cell potential indicate? - Answer-the tendency of the cell reaction to occur What is cell potential expressed in? - Answer-volts An electrolytic cell has a ________ potential - Answer-negative (E<0) What does voltage depend on? - Answer-temperature, pressure, concentration of the cell components What's the standard state condition: - Answer-Temperature= 25 degrees Celsius Gas pressure= 1.00 atm Solute concentrations= 1.00M What is the difference between the potential of the cell's two electrodes? - Answer-Cell potential