Point 6 of 7 — Lesson 2 – Acids, Bases, Salts, Oxides and pH ScaleQuestion bank: 0 questions (0 with pictures)
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Identifying Reaction Types and Predicting Salt FormationProblem Statement & Given Data: Write the balanced chemical equations for the following reactions and state the type of reaction: (1) Hydrochloric acid with sodium hydroxide, (2) Carbon dioxide with limewater, (3) Zinc metal with dilute sulfuric acid.Step-by-Step Mathematical & Chemical Solution: [1] Reaction 1: Acid + Base Neutralization: [2] HCl(aq) + NaOH(aq) ----> NaCl(aq) + H2O(l). [3] Type: Neutralization / Double displacement; produces sodium chloride salt and water. [4] Reaction 2: Acidic Oxide with Base: [5] CO2(g) + Ca(OH)2(aq) ----> CaCO3(s)↓ + H2O(l). [6] Type: Precipitation; forms white insoluble calcium carbonate precipitate causing limewater turbidity. [7] Reaction 3: Metal with Acid Single Displacement: [8] Zn(s) + H2SO4(aq) ----> ZnSO4(aq) + H2(g)↑. [9] Type: Single displacement; produces zinc sulfate salt and flammable hydrogen gas which pops with a lighted splint.💡 High-Yield Exam Shortcut & Pitfall Alert: Exam Tip: All neutralization reactions produce Salt + Water!
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