Imagine an alternate universe where the value of the Planck constant is 6.6207 x 10^-36 J*s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics?
4.A human with a mass of 67. kg, 2.2 m high, moving at 4.5 m/s.
classical or quantum?

about what?
have a good day

The think of process to make something successful

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.