Identify the product formed in the following reaction: 2NaOH(aq) + CuSO4(aq) → Na2SO4(aq) + ?
Identify the type of reaction in the following examples : (i) Na2SO4(aq)+BaCl2(aq)→BaSO4(s)+2NaCl(aq) (ii) Fe(s)+CuSO4(aq)→FeSO4(aq)+Cu(s) (iii) 2H2(g)+O2(g)→2H2O(l)