Exam 8: Energy From Electron Transfer

A NiCd battery uses nickel and cadmium to produce a potential difference. Using these equations, answer the following questions. -Which equation represents the whole chemical reaction within the galvanic cell?

How do the interactions that are broken in water when it is boiled compare with those broken when water is electrolyzed?

Which is the cathode in this galvanic cell?

Silicon has 4 electrons in its outer energy level,gallium has 3.Adding small amounts of gallium to pure silicon

Which is an oxidation half-reaction?

Which is not a necessary consideration for a battery designed to run a cell phone or portable MP3 player?

Semiconductors are more effective than metals as converters of solar radiation into electricity because

Which argument(s)for the increasing use of solar energy is/are valid? I.Solar cells are becoming cheaper and increasingly more efficient. II.The cost of generating electricity from fossil fuels is increasing. III.Limited and uncertain supply and the increasing requirements for pollution control are raising the cost of using fossil fuels.

Whenever a substance is oxidized,

What is a difference between solar energy from solar cells and solar energy from concentrating solar power (CSP)?