Which chemical equation represents a redox reaction?
CaO(s)+SiO2(s)→CaSiO3(l)
CaCO3(s)→CaO(s)+CO2(g)
TiCl4(s)+2H2O(g)→TiO2(s)+4HCl(g)
Fe2O3(s)+2Al(s)→Al2O3(s)+2Fe(l)
CaO(s)+SiO2(s)→CaSiO3(l)
CaCO3(s)→CaO(s)+CO2(g)
TiCl4(s)+2H2O(g)→TiO2(s)+4HCl(g)
Fe2O3(s)+2Al(s)→Al2O3(s)+2Fe(l)