Which of the following is an oxidation-reduction reaction?
Fe2O3 + 3CO ----- 2Fe + 3CO2
CuSO4 + 2NaOH ----- Cu(OH)2 + Na2SO4
2NaOH + H2CO3 ----- Na2CO3 + 2NaOH
Pb(NO3)2 + Na2SO4 ----- 2NaNO3 + PbSO4

Question

Which of the following is an oxidation-reduction reaction?
Fe2O3 + 3CO  -----> 2Fe + 3CO2
CuSO4 + 2NaOH  -----> Cu(OH)2 + Na2SO4
2NaOH + H2CO3 -----> Na2CO3 + 2NaOH
Pb(NO3)2 + Na2SO4 ----->  2NaNO3 + PbSO4

jfraser · Answer

do the same thing as last time. look at each element in each reaction separately. Look at its charge as a reactant, and then look at its charge as a product. To be an oxidation-reduction reaction, the charges of (some) of the elements HAS TO change

somy · Answer

u do know how to find oxidation state of the element in a compound right?

anonymous · Answer

no I do not. :(