Question

Which of the following is not required in a chemical reaction?

a.
atomic nuclei
c.
products
b.
reactants
d.
energy

Answer 1

atomic nuclei:
The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. The atomic nucleuswas discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.