5-12 Write chemical equations to represent acid-base reactions

5-12-1. QUESTION: What is chemical equation for the neutralization of stomach acid, HCl, by milk of magnesia, Mg(OH)2?
A. HCl + Mg(OH)2 → HMg + Cl(OH)2
B. 2 HCl + Mg(OH)2 → 2 HOH + MgCl2
C. HCl + Mg(OH)2 → H2O + MgCl
D. HCl + Mg(OH)2 → H2O + MgHCl


5-12-2. What is the chemical equation for the neutralization of nitric acid, HNO3, by calcium oxide (CaO)?
A. HNO3 + CaO → HO + CaNO3
B. 2 HNO3 + CaO → H2O + Ca(NO3)2
C. HNO3 + CaO → NO4 + CaH
D. 2 HNO3 + CaO → H2O + CaNO3


5-12-JJW. What is the correct equation for the complete neutralization of sulfuric acid by potassium hydroxide?
A. H2SO4 + KOH → H2O + KSO4
B. H2SO4 + KOH → H2O + KHSO4
C. H2SO4 + KOH → H2O + K2SO4
D. H2SO4 + 2 KOH → 2 H2O + K2SO4