Question

7.Write separate, balanced equations for the following double displacement neutralization reactionsa.Hydrochloric acid and sodium hydroxideb.Acetic acid and sodium hydroxide.

Answer 1

a)

Hydrochloric acid: HCl

Sodium hydroxide: NaOH

In the neutralization, an acid and a base react to neutralize the H⁺ and OH⁻, forming water.

In a displacement reaction, an atom in one of the components is displaced to another component in the reaction.

In the case of HCl and NaOH, we can see this as a double displacement, where H⁺ from HCl is exchanged by the Na⁺ of the NaOH, forming NaCl and H₂O:

`HCl+NaOH\to NaCl+H_2O`

b)

Acetic acid: CH₃COOH

Sodium hydrocide: NaOH

In this case, the NaOH is the same. the Aceitc acid dissociates in the following way:

`CH_3COOH\to CH_3COO^-+H^+_{}`

So, we just need to visualize the CH₃COO⁻ as the Cl⁻ of item a.

That is, we will have the reaction exchanging H⁺ and Na