Question

In 1 kilogram of pure water, the mass of hy drogen atoms is approximately 112 grams, or 0.112 kilograms. what is the energy equivalent of this mass in joules?

Answer 1

1.008x10^16 Joules. Technically a theory and not a law. but E=MC^2!
energy=mass ×speed of light squared.
J=kg×(m/s)^2