Reactant
A substance that is changed in a chemical reaction
Real World Example
Imagine your phone's battery slowly draining as you use it throughout the day. Just as your phone's battery decreases and transforms into energy to power the device, a reactant in a chemical reaction is used up and transformed into a different substance. The phone battery is like the reactant, as both undergo a change to produce a desired outcome: the phone battery provides energy for your phone, while the reactant enables a chemical reaction to occur.
Practice Version
