Question

Which reaction is an example of an acid-base reaction? Which reaction is an example of an acid-base reaction?

A) FeCl3 (aq) + 3 KOH(aq) → Fe(OH)3 (s) + 3 KCl(aq)
B) H2SO4 (aq) + Ca(OH)2 (aq) → CaSO4 (aq) + 2 H2O(l)
C) H2CO3 (aq) → H2O(l) + CO2 (g)
D) 2 Hg(l) + O2(g) →2 HgO(s) 6
E) HCl(aq) + 2 Al(s) → 2 AlCl3 (aq) + 3 H2 (g)

Answer 1

The reaction B) H2SO4 (aq) + Ca(OH)2 (aq) → CaSO4 (aq) + 2 H2O(l) is an example of an acid-base reaction.

Step-by-step explanation:

The reaction that is an example of an acid-base reaction is B) H2SO4 (aq) + Ca(OH)2 (aq) → CaSO4 (aq) + 2 H2O(l). In this reaction, sulfuric acid (H2SO4) reacts with calcium hydroxide (Ca(OH)2) to produce calcium sulfate (CaSO4) and water (H2O). This is a classic acid-base neutralization reaction, where the acid and base react to form a salt and water.

Answer 2

B) H2SO4 (aq) + Ca(OH)2 (aq) → CaSO4 (aq) + 2 H2O(l)

Step-by-step explanation:

A is a reaction between a salt FeCl3 and a base KOH

C is a n acid decomposing on it's own to form two products

D is mercury, a metal reacting with oxygen. Two elements reacting. Neither are an acid or a base

E. is an acid reacting with a metal to liberate hydrogen. There is no base