21.2: Half-Cells and Cell Potentials

The ........................................................... of a voltaic cell is a measure of the cell's ability to produce an electric current.

• electrical potential

• magnetic potential

• electrical conductivity

Electrical potential is usually measured in ................................

• ohm

• ampere

• volts

The potential of an isolated half-cell ..................................... be measured.

• can

• cannot

The electrical potential of a cell results from a competition for ..................................... between two half-cells.

• electrons

• protons

• neutrons

The electrical potential of a cell results from a competition for electrons between ....................................

• three half-cells.

• two half-cells.

• four half-cells.

The tendency of a given half-reaction to occur as a reduction is called the ...........................................................................

• reduction potential.

• oxidation potential.

The difference between the ............................................................. of the two half-cells is called the cell potential.

• reduction potentials

• oxidation potentials

The ................................................. (E ^o _cell )is the measured cell potential when the ion concentrations in the half-cells are 1M, any gases are at a pressure of 101 kPa, and the temperature is 25°C.

• magnetic cell potential

• standard cell potential

• electric cell potential

The standard .............................................electrode is used with other electrodes, so the reduction potentials of the other cells can be measured

• hiulim

• carbon

• hydrogen

The standard reduction potential of the hydrogen electrode has been assigned a value of ..............................

• 0.00 V.

• 10.00 V.

• 100 V.