。
Alkali neutralizes acid.
Literal
Alkali [topic-は] acid [obj-を] neutralize.
アルカリ 'alkali' and 中和する 'to neutralize' (中 'middle/neutral' + 和 'harmony' + する) are chemistry terms. A minimal, textbook-definition sentence — subject は object を verb. No structural complexity; value is purely in the science vocabulary.