The equation shows the decomposition of hydrogen peroxide. Calculate the overall energy change for the reaction *
2 H-0-0-1-2 H-0-H + O=0
Bond
0-0
0=0
O-H
Bond dissociation
energy in kJ per mole
138
496
463

Compare and contrast physical changes with chemical changes.

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles