This chemical reaction is very dangerous.

He is an expert in chemistry.

This lemon is sour.

Please add a little vinegar to this salad.

Her eyes were a beautiful amber color.

The Fourier transform plays a very important role in signal processing.

For some reason, I can't convert this sentence.

Affine transformation is an important concept in geometry.

She overreacted to his words.

Nuclear reactions are used for mass production of energy.