For which of the following reactions are both reactants and products likely to be found when the reaction appears to be complete? mg + o2 > 2mgo hf +h2o h30 + f-

The more feasible reaction is:
2Mg + O₂ → 2MgO

This is because the bond between hydrogen and fluorine is very strong so it does not dissociate easily.

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.