chemical
The German word for 'chemical' is 'Chemikalie'. It is used to refer to a substance or compound that has been artificially prepared or purified, or a naturally occurring substance that has been isolated. The term can also refer to a substance used in a chemical reaction. In German, the word is often used in the context of scientific research or industrial processes.
Dangerous chemical is worked with in this laboratory.
This sentence demonstrates that the subject of the sentence is the activity happening in the lab, rather than the chemical itself.
The chemical was accidentally spilled.
Here, the action (spilling the chemical) takes the center stage. The sentence structure subtly indicates it was an accidental occurrence without needing to state it outright.
He found an unknown chemical in the cup.
This sentence emphasizes the discovery. The usage of 'eine unbekannte Chemikalie' especially reinforces the unknown nature and possible danger of the chemical.