Answer:
e−(Ea/RT): the fraction of the molecules present in a gas which have energies equal to or in excess of activation energy at a particular temperature
name= calcium
atomic mass= 40.078 atomic mass unit
no of protons= 20
no of electrons=20
the element hydrogen atom is made up of oxygen atoms.
Answer:
I believe the answer is "b". "During the experiment, the scientist has only one element, or variable, that is changed to test the hypothesis."
Explanation:
I remember from last year but I'm not totally sure. Good luck!
