WorksheetsSEL KIMIA F5
Total questions: 8
Worksheet time: 8mins
To imcomplete the circuit
negative
terminal
positive
terminal
negative
terminal
positive
terminal
In a voltaic cell, electrodes used are copper (electrolyte: copper (II) sulphate solution) and zinc (electrolyte: zinc nitrate solution). What is the half-equation that occur at the copper electrode?
Cu --> Cu2+ + 2e
2H+ + 2e --> H2
Cu2+ + 2e --> Cu
The energy change in voltaic cell is ______________.
kinetic energy --> electrical energy
electrical energy --> chemical energy
chemical energy --> electrical energy
electrical energy --> kinetic energy
A voltaic cell is producing the redox reaction below.
Mg(s) + Fe2+(aq) → Mg2+(aq) + Fe(s)
Which statement is correct when the cell produces electricity?
Magnesium atoms lose electrons.
Mass of the iron electrode decreases.
Electrons flow from the iron half-cell to the magnesium half-cell.
Negative ion flow from magnesium half-cell to iron half-cell.
