Directions: Click on the correct answers. Which of the following phenomena would be associated with the Big Bang Theory?
The universe is contracting
Hot, expanding matter eventually condensed into galaxies.
The universe began as a cool massive star.
Cool, expanding matter eventually heated and became suns.
The universe began in a hot dense state.
The universe is expanding.

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.

the answer would be a