You passed the exam, well done!

I like to soak in the bathtub after a long day.

He is always thought to be a greedy person.

He has a special ability.

This reaction occurs through a chemical process.

He is an excellent chemist who made many discoveries.

He is an expert in petrochemistry.

It's difficult to decipher this chemical equation.

Understanding chemical equations is difficult.

He is an expert in chemical analysis.