Answer:
(a) Sulphuric acid (aq) + Zinc(s) ® Zinc sulphate (aq) + Hydrogen(g) H2SO4(aq)
+ Zn(s) ® ZnSO4(aq) + H2(g)
(b) Hydrochloric add(aq) + Magnesium(s) Magnesium chloride(aq) + Hydrogen(g)
2HCl(aq) + Mg(s) ® MgCl2(aq)
+ H2(g)
(c) Sulphuric acid(aq) + Aluminium(s) Aluminium sulphate(aq) +
Hydrogen(g) 3H2SO4(aq) + 2Al(s) ® Al2(SO4)3(aq) + 3H2(g)
(d) Hydrochloric acid(aq) + Iron(s) ® Iron chloride(aq) + Hydrogen(g) 2HCl(aq) + Fe(s) FeCl 2 (aq) + H2(g)
(e)Sodium hydrogen carbonate (aq) Sodium carbonate(s) + Carbon dioxide
(g) + Water(l)
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