Aballoon is filled with 35.0 l of helium in the morning when the temperature is 20.0c. by noon the temperature has risen to 45.0c. what is the new volume of the balloon?
a
2.5l
b
3.5l
c
4.5l
d
5.5l

The question to your answer is: V2 = 78.75 l  non if the options given

Explanation:

Data

V1 = 35 l

T1 = 20 °C

T2 = 45°C

V2 = ?

Formula

V1 / T1 = V2 / T2

Clear V2 from the equation

V2 = V1T2/T1

Substitution

V2 = (35)(45) / (20)

V2 = 78.75 l

the answer is true.

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.