Life therefore became a form of chemical interaction, with replicators able to change gradually through the mechanics of evolution.

When heat energy increases in a simple system, physical and chemical interactions change.

On the other hand, all those hydrogen bonds represent a chemical interaction.

The tools used must withstand high temperatures and pressures, and need to be resistant to chemical interaction with the glass.

Hydrogen bonding is the chemical interaction that underlies the base-pairing rules described above.

It is worth noting there is no chemical interaction between the stationary phase and a component.

In this case there is no chemical interaction between coal and oxidizer before the reaction zone.

The mechanism of action is instead a chemical interaction with the neurological system.

Systems where chemical interactions occur at equilibrium concentrations.

Counterfeit detector markers use a chemical interaction with the substrate, usually paper, of a document turning it a particular color.