chemical
produced by reactions involving atomic or molecular changes
reaction
a process in which a substance is changed into another
exothermic
occurring or formed with the release of heat
endothermic
occurring or formed with absorption of heat
product
an artifact that has been created by someone or some process
catalyst
substance that initiates or accelerates a chemical reaction
bond
a connection that fastens things together
equilibrium
a stable situation in which forces cancel one another
activation
causing something to take effect or to have energy
substrate
the material that is acted upon by an enzyme
active
characterized by energetic movement
recycle
use again after processing
interaction
mutual or reciprocal dealings or influence
stable
resistant to change of position or condition
external
happening or arising outside some limits or surface
temperature
the degree of hotness or coldness of a body or environment