Classify each of these reactions as redox, acid-base neutralization or precipitation.
PB(NO3)2(aq)+2KCl(aq)→PbCl2(s)+2KNO3(aq)PB(NO3)2(aq)+2KCl(aq)→PbCl2(s)+2KNO3(aq)
CH4(g)+2O2(g)→CO2(g)+2H2O(l)CH4(g)+2O2(g)→CO2(g)+2H2O(l)
Cu(s)+FeCl2(aq)→Fe(s)+CuCl2(aq)Cu(s)+FeCl2(aq)→Fe(s)+CuCl2(aq)