You are observing two metal cubes that have the same shape and size. However cube E is significantly more dense than cube A. Explain your observation. *

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.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

c) should be the answer.