Question

In a nuclear fusion reaction, the mass of the products is(1) less than the mass of the reactants because some

of the mass has been converted to energy
(2) less than the mass of the reactants because some
of the energy has been converted to mass
(3) more than the mass of the reactants because some
of the mass has been converted to energy
(4) more than the mass of the reactants because some of the energy has been converted to mass

Answer 1

the product is less than the mass of the reactants because some of the mass has been converted to energy