2 sentences

1. 这两个化学成分很难分离。

   zhè liǎng gè huà​xué chéng​fèn hěn nán fēn​lí.

   These two chemical components are difficult to separate.

   Source: Dong Chinese Dictionary

2. 这种清洁剂含有强力化学成分。

   zhè zhǒng qīng​jié​jì hán​yǒu qiáng​lì huà​xué chéng​fèn.

   This cleaner contains strong chemical ingredients.

   Source: Dong Chinese Dictionary