TLF ID L8885
View six galvanic cells built from six different combinations of half-cells of copper, zinc, iron and silver. Observe how the voltmeter needle moves when the circuit is complete, and deduce the direction of electron flow in the external circuit and the polarity of the electrodes. Deduce and record which of the two metals in each cell is the stronger reductant. From the recorded observations, deduce the order of the half-equations in the electrochemical series for the four metals tested. This learning object is one in a series of three learning objects.