On a 310 K day, soda is being carbonated in a factory. A 0.031 m² pressure device receives a measurement of 9900 N from the gases in
the soda bottle. What is the pressure of the gases in the soda bottle?

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.

a) the particles of the chair are strongly held together.