Which of these statements about reaction rates is accurate?

(a) all chemical reactions occur at different rates.
(b) all chemical reactions occur at the same time.
(c) all chemical reactions occur at a slow rate.
(d)all chemical reactions occur at a fast rate.

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.

can you list the answers so i can answer