Assertion: fuel cell's cathode | /r/CapableOf | use either \(hgo\
Facets:
value: as \(mno_2\
type: OTHER
value: as the oxidant
type: MANNER
Source sentences:
text: In these "button" batteries, the anode is a zinc–mercury amalgam rather than pure zinc, and the cathode uses either \(HgO\) or \(Ag_2O\) as the oxidant rather than \(MnO_2\) (part (b) in Figure \(\PageIndex{1}\)).