Molecules have ? : A) both potential and kinetic energy. B) only kinetic energy. C) only potential energy. D) neither kinetic nor potential energy.

C) only potential energy.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

answer: they produce more slow than unicellular organisms.