A container is divided into two equal compartments by a partition. One compartment is initially filled with He at a temperature THe; the other compartment is filled with oxygen (O2) at temperature T02. Both gases are at the same pressure. If we remove the partition and allow the gases to mix, what will be their final temperature

The final temperature of the mixture of helium and oxygen THe + O2.

Explanation:

If we remove the compartments between helium and oxygen molecule, they will not react with each other because helium is a noble gas or stable gas due to complete its outermost shell so it cannot react with oxygen. So if they donot react with each other, no heat energy is absorbed or released and the temperature of the container remains constant. Both the molecules remain suspended in the air and donot react with each other.

kuchisake

kuchisake-onna (口裂け女, "slit mouth woman ") is a malevolent figure appearing in japanese ghost stories, possibly dating back to the edo period. she takes the form of a masked woman who approaches people and asks them if they believe she is pretty.

explanation:

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"