Studied by 7 peopleRedox reactions
electrons are transferred from one atom to another
oxidation
loss of electrons
reduction
gain of electrons
half-reactions
redox reaction broken up into two individual reactions
oxidation number (state)
calculated to find if electrons were transferred
single replacement (displacement)
atom replaces another in a compound which produces a new atom and compound
active metals such as Li or Ba
react with water in single-displacement reactions
active metals that react with water examples
Li, Na, K, Sr, Ba
Active metals such as Mg or Fe
react with acid but not water in singe-replacement
active metals that do not react with water examples
Mg, Zn, Pb, Ni, Al
inactive metals
do not undergo simple single-replacement with water or acids
inactive metals examples
Ag, Pt, Au, Cu
electrolytic cells
redox reactions that do not normally occur but can when adding electricity
galvanic cells
spontaneous redox reaction that can occur without added energy
electrolysis experiments
adds electrodes to nonspontaneous redox reactions to cause reaction to occur
cathode
electrode where electrons are supplied
anode
electrode where oxidation reactions occur
Faraday’s constant
1 mole electrons = 96,485 coulombs
thermodynamically favored reaction will create a ____ reading on galvanic cell voltage readings
positive
combustion
when organic compounds reacts with oxygen which produced carbon dioxide and water
Note
Flashcard