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Proton Transfer

Part of the Acids and Bases section of Coddy's Chemistry journey. Lesson 3 of 30.

H⁺ is a bare proton. An acid is a proton donor; a base is a proton acceptor.

An acid reaction is a proton transfer: one gives, another takes. No water is needed:

HCl + NH₃ → NH₄⁺ + Cl⁻

HCl gave the proton (acid); NH₃ took it (base).

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Challenge

A bottle of hydrochloric acid and a bottle of ammonia stand open side by side, and a white smoke forms between them:

HCl + NH₃ → NH₄⁺ + Cl⁻

Which reactant is the acid and which is the base?

Try it yourself

Acids and basesFind the acid and the base

HClNH3NH4+Cl−

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This lesson includes a short quiz. Start the lesson to answer it and track your progress.

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