Make up the molecular and ionic equations between: a) potassium sulfide and hydrochloric acid

Make up the molecular and ionic equations between: a) potassium sulfide and hydrochloric acid b) basic copper carbonate and nitric acid c) potassium hydroxide and potassium hydroxide.

a) K2S + 2HCl = 2KCl + H2S ↑
2K + + S 2- + 2H + + 2Cl – = 2K + + 2Cl- + H2S ↑
2H + + S2- = H2S ↑
b) CuCO3 + 2HNO3 = Cu (NO3) 2 + H2O + CO2
CuCO3 + 2H + + 2NO3- = Cu2 + + 2NO3- + H2O + CO2
CuCO3 + 2H + = Cu2 + + H2O + CO2
c) KHCO3 + KOH = K2CO3 + H2O + CO2



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