The reaction times of the participants were measured and compared.

The reaction engines of the aircraft were powerful and efficient.

The reactions saves were impressive.

The Mazzotti reaction is a chemical reaction that involves the conversion of a primary amine to an isocyanate.

The reaction wheel is an important component of the spacecraft.

The spacecraft uses reaction wheels to control its orientation.

The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides.

The Kolbe reaction is an important organic reaction.

The Wurtz reaction is a chemical reaction that joins two alkyl halides to form a longer alkane chain.

The Mannich reaction is a powerful tool in organic synthesis.