Kaplan Gen Chem Contd 2.

Question 1

…. are contained systems in which redox rxns occur:

…/…, …, … cells

Answer 1

electrochemical cells;
galvanic/voltaic;
electrolytic;
concentration

Question 2

galvanic and concentration cells house … rxns and electrolytic cells house … rxns

Answer 2

spontaneous;

nonspontaneous

Question 3

all electrochemical cells contain electrodes where ox and red rxns take place.
the electrode where oxidation occurs is the … and the one where reduction occurs is the …

Answer 3

anode;

cathode

Question 4

…: voltage or electrical potential difference of the cell
… –> cell is able to release energy and the rxn is spontaneous
… –> cell must absorb energy and rxn is nonspontaneous

Answer 4

electromotive force (emf);
positive emf;
negative emf;

Question 5

for all electrochemical cells, movement of electrons is from … to … and the current (I) runs from … to …

Answer 5

anode; cathode;

cathode; anode

Question 6

…: a theoretical flow of positive charge

… and … are always of equal magnitudes but opposite directions

Answer 6

current;

current; flow of electrons

Question 7

…/… cells make up nonrechargeable batteries –> spontaneous reactions with negative free energy change and positive emfs

Answer 7

galvanic; voltaic;