Hi!
In collision theory, for a chemical reaction to occur - there must be <em>sufficient </em>energy to break down chemical bonds.
We call this the activation energy, as it's the energy needed to <em>activate </em>a chemical reaction!
Hopefully, this helps! =)
Answer:
clorine have seventeen electrons
<span> 0.00496<span> is the correct answer for this statement </span></span>
All except for absorption of heat
