Maria’s father started a fire in the fireplace. he crumpled some paper, lit a match, and soon the logs in the fireplace were burning. in this case, the stored chemical energy in the logs was changed into
a) electrical energy.
b) mechanical motion.
c) heat and light energy.
d) electrical and heat energy.

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?