Which statement defines activation energy?
It is the sum of the maximum energy and reactant energy
It is the sum of the product energy and reactant energy,
It is the difference between reactant energy and maximum energy.
It is the difference between product energy and reactant energy

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

What are the first three quantum numbers for the electrons located in subshell 2s?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)