Which of the following reactions are redox reactions? Check all that apply. a.) Pb(NO3)2+MgCl2→Mg(NO3)2+PbCl2 b.) 2SO2+O2→2SO3...

Question

Question

Which of the following reactions are redox reactions?

Check all that apply.

a.) Pb(NO3)2+MgCl2→Mg(NO3)2+PbCl2

b.) 2SO2+O2→2SO3

c.) CaCl2+Na2CO3→2NaCl+CaCO3

d.)C2H2+2H2→C2H6

f.)HCl+NaOH→H2O+NaCl

Answer 1

Answer #1

b) 2SO2 + O2 = 2SO3 is redox reaction as S is oxidize from +4 to +6 and oxygen reduce from 0 to -2.

d) C2H2 + 2H2 = C2H6 is redox reaction as C reduce from -1 to -3 and H oxidize from 0 to +1 oxidation state.

Answer 2

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