Put the moon phases in order from first to last phase.

a. b, c, a, d

b. a, b, c, d

c. d, b, c, a

d. a, c, b, d

the correct answer is a

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 answers would be

the first one and the second one