Refer to these reactions to answer the questions below.
(a)Ba(OH)2 + H2SO4 → 2H2O + BaSO4
(b) NaOH + HCl → NaCl + H2O
(c) 2H2 + O2 → 2H2O
(d) C2H6O + 3O2 → 2CO2 + 3H2O
-For each reaction above that can be classified as an electron transfer reaction, state which element(s)gain, and which element(s)lose, electrons.
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