Ch6 other

Question 1

Galvanic cell/

Answer 1

Also known as a voltaic cell, a device which converts chemical energy into electrical energy

Question 2

Hydrogen economy

Answer 2

A proposed system of delivering energy for society using hydrogen as the source of energy

Question 3

Electrode

Answer 3

A (usually) solid conductor in a half-cell at which at oxidation or reduction reactions occur.

Question 4

Electrolyte

Answer 4

A chemical substance which conducts electric current as a result of dissociation into positively and negatively charge ions, which migrate toward the negative and positive terminals of an electric circuit.

Question 5

Anode

Answer 5

An electrode at which oxidation reactions occur

Question 6

Cathode

Answer 6

An electrode at which reduction reactions occur

Question 7

Biogas

Answer 7

A mixture of gases produced by the breakdown of organic matter in the absence of oxygen. Biogas comprising mainly methane and carbon dioxide