Balance the following chemical equations: (a) HNO3 + Ca(OH)2→ Ca(NO3)2 + H2O (b) NaOH + H2SO4→ Na2SO4 + H2O (c) NaCl + AgNO3 → AgCl + NaNO3 (d) BaCl2 + H2SO4 → BaSO4 + HCI
(a) 2HNO3 + Ca(OH)2→ Ca(NO3)2 + 2H2O (b) 2NaOH + H2SO4 → Na2SO4 + 2H2O (c) NaCl + AgNO3 → AgCl + NaNO3 (d) BaCI2 + H2SO4→ BaSO4+ 2HCl