Drag each pressure unit with the corresponding number to describe standard atmospheric pressure.

tiles
psi
1
14.7
101.3
atm
kpa

The answer to your question is:

                                                    Psi = 14.7

                                                     Atm = 1

                                                     kPa = 101.3          

Explanation:

Psi: means "Pounds of force per Square Inch of area " an is a unit of pressure.

Atm: means atmosphere and is a unit of pressure defined as 101325 Pa.

kPa: is defined as the force of 1 Newton applied over one square meter.

      ( 101325 Pa = 101.3 kPa)

Then

        Psi = 14.7

         Atm = 1

         kPa = 101.3          

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.