Observation: A white solid is formed. It tastes salty.
Conclusion: An acid reacts with an alkali to produce salt and water.
Exercise
Q1. (a) hydrochloric acid + sodium hydroxide à sodium chloride + water
(b) HCl + NaOH à NaCl + H2O
Q2. (a) Hydrochloric acid + potassium hydroxide à Potassium chloride + water
(b) HCl + KOH à KCl + H20
Q3. (a) Hydrochloric acid + calcium hydroxide à Calcium chloride + water
(b) HCl + CaOH à CaCl + H2O
Q4. (a) nitric acid + sodium hydroxide à sodium nitrate + water
(b) HNO3 + NaOH à NaNO3 + H2O
Q5. (a) nitric acid + potassium hydroxide à potassium nitrate + water
(b) HNO3 + KOH à KNO3 + H2O
Q6. (a) sulfuric acid + calcium hydroxide à Calcium sulfate + water
(b) H2SO4 + CaOH à CaSO4 + H2O
Q7. (a) sulfuric acid + sodium hydroxide à sodium sulfate + water
(b) H2SO4 + NaOH à NaSO4 + H2O
Q8. (a)sulfuric acid + potassium hydroxide à potassium sulfate + water
(b) H2SO4 + KOH à KSO4 + H2O
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