标出下列元素的化合价,紧急,
SO2的S_______SO3的S_______H2SO4的S_________NO的N_________NO2的N____________
N2O5的N________NH4NO3的两个N________KClO3的Cl__________Fe2O3的S_________CuO的Cu___________
Cu2O的Cu________K2MnO4的Mn_________
还有FeSO4的S______K2MnO4的Mn_______