Can matter be turned into energy?
Eisteins famous equation
When matter is lost , the matter is changed into energy. This is the source of energy in the atomic bomb,Hydrogen bomb, the sun, internal heat of the earth, and perhaps the universe itself.
Albert Einstein showed that matter and energy are equivalent and interchangeable.
Einstein's famous equation relates energy
In every reaction mass-energy is conserved. Energy can take many forms and often changes form. One form of energy is mass.
Nuclear fission and fusion reactions produce energy by converting binding energy mass into energy.
Particles and their antiparticles annihilate each other by converting their combines mass into photon energy.
Photons are their own antiparticles and can combine to produce an electron-positron pair.
Other conservation laws, such as the conservation of charge, prevent electrons and protons being converted into energy.
Mass gets converted into energy when a particle meets its antiparticle or particles get added or removed from an atomic nucleus.