Question

CH₃NH₂ (aq) + H₂O (l) ⇌ ?

a) CH₃NH₃⁺ (aq) + OH⁻ (aq)
b) CH₃NH₃⁺ (aq) + H₂O (l)
c) CH₃NH₃⁻ (aq) + H₃O⁺ (aq)
d) CH₃NH₃⁻ (aq) + OH⁻ (aq)

Answer 1

The correct answer is a) CH₃NH₃⁺ (aq) + OH⁻ (aq). In this reaction, CH₃NH₂ is an amine compound that acts as a base. When it reacts with water (H₂O), it accepts a proton (H+) from water, forming the CH₃NH₃⁺ ion (methylammonium). Meanwhile, water loses a proton, forming the OH⁻ ion (hydroxide). Option a is correct.

Step-by-step explanation:

The correct answer is a) CH₃NH₃⁺ (aq) + OH⁻ (aq).

In this reaction, CH₃NH₂ is an amine compound that acts as a base. When it reacts with water (H₂O), it accepts a proton (H+) from water, forming the CH₃NH₃⁺ ion (methylammonium). Meanwhile, water loses a proton, forming the OH⁻ ion (hydroxide).

Therefore, the equation is: CH₃NH₂ (aq) + H₂O (l) ⇌ CH₃NH₃⁺ (aq) + OH⁻ (aq).