Which statement describes a chemical reaction at equilibrium? Reactant molecules and product molecules have the same velocity.

Molecules of reactants and products collide with the same frequency.

The concentrations of reactants and products are equimolar.

Reactants and products are consumed and formed at the same rate.

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.