when one object reacts with another. It involves science
Operational is something that is in use. Operational also mean ready for use.
moral
dissolvable
style and coolness.
they are kool...
It is the past of the verb to come.
Ennui is the definition of boredom.
dividend
something that you know
Is the reactivity of an alloy very different from the reactivity of its major component?"
incessantly means endlessly; constantly
willy