Most powerful reaction (Physics)

When normal matter reacts with antimatter, the result is the complete annihalation of both. All of the mass is converted to energy as in Einstein's famous equation E=MC2. Weight for weight, matter/antimatter reactions are 300 times more powerful than fusion reactions, and a thousand times more powerful than fission (used in nuclear plants). They are also 10 billion times more powerful than conventional chemical reactions such as burning hydrogen and oxygen. Antimatter is similar to normal matter except the charges on the subatomic particles are reversed. So an anti-electron or a positron, is the same as an electron but with a positive, rather than a negative, charge. Similarly an antiproton will have a negative charge.

Less than 100g of antimatter would produce energies similar to the power of a hydrogen bomb, if annhilated (it came into contact) with matter.