100 POINTS WILL MARK BRAINLIEST ONLY ANSWER IF YOU'VE TAKEN THE TEST OR 100% SURE ABOUT YOUR ANSWER!!!
If the total mass of the products of a reaction is less than the mass of the reactants, what must be true?
A) - A nuclear reaction has taken place.
B) - A chemical reaction has taken place.
C) - Nuclear fusion has occurred.
D) - Nuclear fission has occurred.
I'm stuck between D and A
