Answer: The vapor pressure of the solution at 
is 29.86 mm Hg
Explanation:
As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.
The formula for relative lowering of vapor pressure will be,
where,
= relative lowering in vapor pressure
i = Van'T Hoff factor = 1 (for non electrolytes)
= mole fraction of solute
=
Given : 9 moles of 
are dissolved in 50 L or 50000 ml of water
mass of water = 
moles of solvent (water) = 
Total moles = moles of solute + moles of solvent = 9 mol + 2778 mol = 2787
= mole fraction of solute
=
Thus the vapor pressure of the solution at is 29.86 mm Hg
Answer:
It loses kinetic energy.
Explanation:
The definition of heat is molecules moving fast, so it cooling would mean they slow down.
By hot springs, fumaroles and geysers.
To identify in what beakers will a reaction occur, we need to know what aqueous solution is in the four beakers. Then, we also need to know what metals are placed inside those beakers. Now, we can analyze which metals might or will react to the solution in the beakers.
